Thursday, 9 April 2026

How Minds Change: The Surprising Science of Belief, Opinion, and Persuasion by David McRaney

 This is another "I found it randomly in the library" book, picked up because I saw it on the shelf while I was looking for something else. Unlike Orlanda, this didn't turn out to be something I was really glad I'd found, but I still learned something from the book.

So, we live in a polarized 'post-fact' world, where at least online there is no agreed baseline set of facts and we all belong to subgroups where 'the truth' is obvious and all outsiders are clearly misguided fools. It can seem impossible or futile to speak to those who do not share our beliefs because it seems impossible to persuade others that even the most ridiculous ideas are wrong. (Flat earthers anyone?)

Do we all give up? Are facts useless? Persuasion impossible?

This book draws upon a variety of sociological, psychological, and political research to argue that not only is persuasion possible, it is foundational to human societies. It then goes on to provide some "how to" recipes.

What did I think? Well, I'm not convinced by some of the research that the author quotes (for example, McRaney refers to some 1950s/60s studies that I think may have been debunked, based on other reading I've done). And as many of the StoryGraph reviews mention, the book itself sometimes feels a bit repetitive, and the arguments overdrawn. But I did draw a few insights that I'll carry with me:

  • People are tribal. Asking folks to change what they believe can be the same as asking them to change which group they identify with, and therefore fundamentally asking them to change who they believe they are. (It's shameful that issues like climate change have been 'politicized' in this way by evil assholes, but here we are.)
  • "Facts don't matter" in a discussion of this nature, because which facts are relevant or important to a speaker depends on what they value, how they feel about an issue, and which community they feel they belong to. (Facts matter to those of a scientific/technical bent, because adherence to facts is a key principle of belonging to a scientificly/technically literate community).
  • People can and do change their minds, even about fundamental issues, sometimes apparently very quickly. For example, remember how quickly North American society switched to supporting gay marriage (polls within a 5 year span changed from 70% against to 70+% in favour).
  • You can't change someone's mind, but you can have a discussion that prompts people to change their own minds.  Productive conversations focus on discussing the process of how people have come to have a belief, not the supporting evidence for the belief.
  • Why do you want to change someone's mind? Ask yourself that question before proceeding.
McRaney provides a number of templates for how to have persuasive conversations, based on the work of several different organizations/people who independently developed similar techniques. In practise, using these techniques effectively requires empathy, curiosity, and a lot of practise and feedback. So fear not! You will not have your mind changed by reading this blog entry.

Here's one example of a template, based on the work of a Californian organization that does "deep canvassing" in support of ballot initiatives for LGBTQ+ rights:

  1. Establish rapport: Your intention is to explore their reasoning, not to shame them for their beliefs. Ask their consent for the conversation.
  2. Ask how strongly they feel about their belief on a scale of 1 to 10.
  3. Share a story about someone (perhaps yourself) who is affected by the issue. Ask if that changes the 'number' for that person. If the number changes, ask why.
  4. "Why does that number feel right to you?" Explore how and why the person has their level of certainty. Ask questions. 
  5. Once they have summarized their reasons, repeat their conclusions back to them until they agree that you have summarized accurately.
  6. Ask if there was a time in their life before they felt this way, and if so, what led them to their current attitude.
  7. Listen, summarize, repeat.
  8. Briefly share your personal story of how you reached your position, but do not argue.
  9. Ask for their rating a final time, wrap up, thank them for their time and wish them well.
The key part of all of these techniques is getting the person you are speaking with to reflect on why they hold the position that they do, and why they have the level of certainty that they claim. Other templates prompt questioners to ask "why not a 1?" or  "why not a 10?" "Have you always been a 9 on this issue? When or how did you come to that conclusion?" What information would have to change for you to be a 1/10?" "Why do you think that someone with the same information you have might draw a different conclusion?"    

In other words, we all have a variety of beliefs on a variety of subjects, some of which we hold strongly, and some of which we have never examined carefully. By careful and empathetic questioning, we can prompt others to examine their own beliefs, and sometimes, change their own minds.  Not necessarily immediately and not necessarily 180 degrees, but in real and significant ways.

Which is an encouraging idea in a discouraging world.

Monday, 23 March 2026

Johannes Gutenberg: A Biography in Books by Eric Marshall White

 This is a book for Wikipedia editors who are accustomed to beginning discussions of their contributions with "Well, actually...."   In other words you could call it "meticulously researched" (as the Storygraph AI summary does), even though words like 'precise' and 'persnickety' were the ones that kept leaping to mind as I read.

But that's not actually a diss!  This is also a book for those who are interested in how we know what we think we know about history.  As White traces each historical reference that credits (or ignores) Gutenberg's contribution to the invention of movable type, you get a much better sense of the fragility of historical records, and of how our sense of our joint past is created both by the stories we tell one another and by the information we retain or lose as time passes. 

The book is also full of fascinating details, like the fact that Johan Fust, Gutenberg's business partner, made the then-largest order of paper in European history to print the (probably) 158 copies of what we now call the Gutenberg Bible. Or that we can tell that 6 different teams of printers working in concert produced that bible, based on differences in ink composition, paper, and the minor printing discrepancies between the various 'quires' of the books of the bible.  It was also interesting to learn that the Gutenberg bible was *not* the first widely distributed piece of printed material -- that honour probably goes to a mass of indulgences that Gutenberg printed for the church the year before (that were intended to raise money for a campaign against Muslims after an attack on Cypress). 

I found Johannes Gutenberg: A Biography in Books an interesting read, even if I personally have no particular interest in printing, medieval history, or Johannes Gutenberg per se.  Recommended for students of any of those subjects, or for those, like me, who sometimes enjoy learning random things.

Friday, 13 March 2026

Orlanda: A Novel by Jacqueline Harpman

 So this novel is an example of why I don't keep "To read" lists, why I hate searching for something to read in Libby, and why think that the internet and the algorithm is the death of discovery.

I would never have picked this book up if I hadn't run across it in the library.  Orlanda was on a "New titles" shelf near the door, and somehow the combination of the title, its 50s style modernist cover, and the note under the author's name stating "author of I who have never known men" (which I think I've heard of?) whimpelled me to pick it up. ('Whimpelled' is an inadvertent coinage, but it's perfectly apt so its staying). 

I took it out.  I read it almost immediately.  I'm really glad I ran across it.

Bookstores. Libraries. Physical copies of books that enter your life, and sometimes wait patiently on your shelf for years until it's the right time for you to read them. That's how I want my reading life to unfold.

Anyway, what is this book, and why am I glad to have found it?  Orlanda was inspired by Orlando by Virginia Wolf, and our heroine is in fact reading Orlando as the novel opens. Unlike Orlando, where the protagonist mysteriously changes gender multiple times over a fantastically long life, in Orlanda the protagonist looks up from her reading, bored, at a beautiful young man having a coffee in the same cafe -- and half of her soul leaps. From that point on, half of Aline remains Aline, 35 year-old literature professor with a staid life, and half becomes the carefree, carelessly sexual Lucien Lefrene. 

This is not a novel premise for a novel -- viz Orlando, of course, but also Larque on the Wing by Nancy Springer (winner of the 1994 Tiptree award). What makes Orlanda compelling is the execution.  The writing is wonderful.  

Let us listen too for awhile.  Schumann had such a brief life that we owe it to him to devote a few moments to his music. Time kills us, second after second, and we fools continue to be impatient. Oh! for tomorrow, next week, for the moment we're awaiting finally to come. But, reckless soul, it will all end! Suppose you tried instead to enjoy the present? Stop, listen. Your heart is beating, thick blood flows through your veins, you are alive, make the most of it now, don't say that enjoyment will come later. It's here, it's happening now, and it won't last long, every note of the concerto dies away. When you come to the end of the first movement, you can play the record again, but you can't restart the record of your life, for that is only played once.

And the structure is interesting too.  The story is told by 'the author', who addresses the reader directly, as in the passage above, explaining, exhorting, popping into the perspectives of Aline, Lucien, Orlanda, Orlanda's lover, Lucien's sister, etc. as needed to move the story along.  It's lovely to read something that isn't in the ubiquitous "close third person" that is de rigeur in modern genre fiction.  And it's lovely to occasionally read something literary.

What is the message of the book? Of course, as in Larque, Harpman chooses a sexy 20 year old gay male persona to be the foil for her middle-aged female protagonist. But the sex (from which 'the author' mostly deliberately and prudishly turns her face and her pen) isn't the point. The point is both to compare the freedom and care-freedom possible in young male life with the repression and responsibility common to 'properly raised' middle class women. (One of Orlanda's first acts after being freed from Aline is to bound energetically across a station platform to catch his train, enjoying the exhilaration of unself-conscious movement, the freedom not to care about snagging his stockings or looking weird.)  But Harpman digs deeper too.  The two halves of Aline's severed soul both relish their freedom from one another, but they are also increasingly attracted to ..... Each other? Themselves?  Would we be our own perfect companions? What do we need from others? What do we need from ourselves?

Just a few of the questions that Orlanda raises, but of course does not answer because this is literature, not a user manual.

An enjoyable brief read, republished in English to mark the 30th anniversary of its original publication in French.  (A book that would be very different if written today, as highlighted by the new afterword provided by a modern novelist who ponders and then rejects the hypothesis that Aline is trans.)

Tuesday, 23 December 2025

Fair Play: How Sports Shape the Gender Debates by Katie Barnes

I'll start by saying that I think a more accurate subtitle for this book would be something like "A discussion of the gender controversy in sports in the United States, and how it has been weaponized by the Trumpian Right Wing" 

That makes the book a bit of a puzzling read for me because:

  • I am not an American
  • I am not a sports person

But given how the very existence of trans people (particularly trans children) has become a key way for current "conservative" parties to generate outrage, I thought this book could be a timely and perhaps informative read.

My thoughts? 

First of all, Katie Barnes is an excellent journalist.  They have been covering trans folks in American sport since 2016 (the book was published in 2023), and bring their in-depth knowledge, personal experiences, and full professionalism to the discussion. This feels particularly impressive given that Barnes was a child athlete and is trans themselves. No matter how understandable it might have been for Barnes to write either a rant or a polemic, they have not done so.  Instead Fair Play is a thoughtful and well-informed book that benefits from Barnes' empathy, insight, and deep knowledge of the subject matter.  Throughout they go beyond the obvious to tell the human stories of people like Lia Thomas or Mack Beggs (who are more often treated as talking points than people), while also diving into what we know about the science of gender-based athletic difference, the history of post Title IX American women's sport, and the known history of trans/intersex people's involvement. 

In other words, Barnes did an excellent job with Fair Play.  

Does that mean that I think everyone should read this book? The answer for me would have to be, yes but. And the reasons for that but really boil down to the fact that fundamentally, this is a sports book and an American book:

  • Example #1:   Barnes expresses as a supposed truism that "Sports are important; all kids should be able to play them".  This sounds admirable, but I don't believe sports as a whole actually believes that in any real way.  For example, when some of the trans/gender-non-conforming athletes interviewed for this book speak about how they felt isolated or excluded within their sports, my gut reaction was "I'm so sorry you experienced that, but that's sports and sports people for you. That's exactly what they're like." 
In other words,  I find it sad but unsurprising that gender-non-conforming kids have the same experience within sports that I did as an unathletic nerdy child. 

  • Example #2:  The book is full of "inside baseball" details about American sport. The most literal example comes when Barnes describes the experiences of a kid who started their sports career playing girls softball before transitioning. I have sympathy for the difficulties that kid faced, but:

    •  the idea that softball is gendered as a female is weird (which Barnes acknowledges. Unlike in Canada or Australia, in the US softball is purely a women's sport.)  
    •  the idea that softball and baseball are somehow completely different sports is hilarious to me. (I played league softball as a kid.  IIRC, the differences are underhanded pitching in softball vs. overhand pitching in baseball, a different ball, and a few minor rule differences around strikes and outs. In other words, softball and baseball are essentially the same sport! We aren't comparing rugby and rhythmic gymnastics here.) 

In other words, as with many books, its specificity is both its weakness and its strength. Which is to say, once again, that fundamentally Fair Play is both an American book and a sports book.  

My last observation is that I found the discussion in Chapter 8: The Breakup in Women's Sport heart-breaking.  This is where Barnes covers the attempt of a group of 'old school feminist sports advocates' and a group of 'new school LGBTQIA+ activists' [my words, fwiw] to come up with a common position and an agreed-upon set of policies around trans inclusion in women's sport. 

They failed. 

The resulting fracture was seized upon and weaponized by those who wanted nothing more than to stoke hatred and division (ie/ Trumpian politicians). You could say that we are seeing the repercussions of that failure everywhere today (including in the despicable laws recently enacted by the Alberta government).

What happened?  

A reductionist view is that one side favoured "fairness" while the other favoured "inclusion". But in some ways the division reminds me of a division that I've seen in the world of computer programming.  

To be a good UI designer (and to make a truly awesome user interface), your designs must make the tasks that most people do most of the time easy and intuitive. Sure, there are less-common tasks, and there are people who need to do unusual things. But if your user interface focuses on that 20%? Disaster. Most people will dislike your software, avoid using it, use it incorrectly, or even hate it.

On the other hand, to be a good back-end programmer, you need to obsessively concentrate on edge conditions. If you don't account for every 'uncommon' case that could possibly happen, your code will fail -- probably spectacularly and at the worst possible time.  In other words, to make a system work you need to spend 80% of your time concentrating on the 20% of edge conditions that could make everything fall apart. 

 In the world of computer programming, the best software comes from teams with both sets of skills, of course, where each kind of expert can focus on their area of expertise. Then the team can work together to build something great.  

But outside of the technical sphere? Well, even within it we live in a world with UIs built by back-end specialists, and back-ends that fail because they don't account for easily predictable situations. And outside? I wonder what kind of software we'd have if every bug was treated as a deliberate provocation and if stoking outrage was a goal written into the product specs?

Overall, Fair Play is an interesting and often thought-provoking read. 



Sunday, 7 December 2025

The Third Rule of Time Travel by Philip Fracassi

One of the reasons that I write these blog entries is that they help me clarify my thinking about a book. That means that writing them is work -- I'm not just putting my thoughts 'on paper', I'm thinking things through as I write, which typically means a fair number of false starts and rewriting. I see words on the screen and what I've written leads to new thoughts, or sometimes I realize that what I've written is not really what I meant.  After that there's the process of making the sentences and paragraphs into a coherent narrative.

None of this is really a problem, but as I was writing an entry on The Third Rule I started thinking about generative AI. I used to follow a Tech Writing blogger, who is now all in on using AI in his work.  A relative told me this summer that he uses AI to help him generate Linked In content to support and promote his business.  Could I use AI to make writing a blog entry easier?

I put what I'd already written and some bullet points outlining what else I might add into Claude AI.  

I'm sharing the results below.  <spoiler alert>  I didn't actually complete a blog entry using Claude. </spoiler alert>  In fact, the whole experience soured me on completing this blog entry at all!  But I thought I'd share the process in case anyone finds it interesting.

-------------my original opening paragraphs and notes---------------

Here's what I fed into Claude, with the instructions to complete a blog entry for me.

First rule of time travel: You can only travel to a point within your own personal past. Second rule: Your trip can only last 90 seconds. Third rule:  You can only observe.

This is a fast-paced SF thriller. As the book opens we are time travelling to the plane crash that killed the protagonist's immediate family when she was a teen. From there the pace rarely falters as The Third Rule follows its scientist heroine as she struggles to keep her professional and personal worlds from unwinding.

Parts of this book work really well -- I literally gasped when I realized (via a throwaway line) that one of the rules of time travel had just been broken.  The science of time travel is well-done too, and the explanation of how it all works is interesting and plausible. I also liked the way Fracassi added the time travel explanation to the story by introducing a journalist who needs things explained to them -- because the presence of the journalist is a key plot point in Beth's struggle to save her life's work from rapacious capitalists. In the end, the explanation ratchets up the tension rather than slowing down the action. 

Beth's grief at the death of her husband and the impact of that grief on her life 

Points I want to make:

Good Side

  • The premise of this kind of limited time travel is interesting.
  • I literally gasped when I realized (via a throwaway line) that one of the rules of time travel had just been broken.  
  • The science of time travel is well-done too, and the explanation of how it all works is interesting and plausible. 
  • I also liked the way Fracassi plausibly added that explanation to the story by introducing a journalist who needs things explained while making the very presence of the journalist a key plot point in Beth's struggle to save her life's work from rapacious capitalists. In the end, the explanation ratchets up the tension rather than slowing down the action. 

Bad Side

  • Beth was one note emotionally: she is constantly devastated by past trauma, angry, impatient, stressed and always falling apart
  • Jim, the billionaire owner of the Langan Corporation (and Beth's boss) is a cartoon capitalist villain
  • Supporting characters are inconsistent/not well drawn
    •  Tariq is Beth's assistant,  and is mistreated / ignored by Beth until he suddenly reveals himself to be her biggest supporter and a holder of critical info
    • Jonathon the therapist: is he supporting Beth, or betraying her to corporation? There are mixed messages, and in the end I honestly wasn't clear. 
    • There is a Chekov's gun situation with Abigail: she takes Beth aside to tell her that despite appearances, she has Beth's back, and then nothing comes of it

  • Means of resolving the story was unsatisfying: basically, 'there are some things humans just can't understand', and then everything is mysteriously resolved, the end.
------------Claude's First Draft ----------------
And you can see below what Claude gave me.  My reaction -- OMG this is terrible.

A Time Travel Tale That Almost Sticks the Landing

Book Review: "The Third Rule of Time Travel" by Philip Fracassi

Philip Fracassi's "The Third Rule of Time Travel" presents an intriguing take on temporal mechanics wrapped in corporate thriller packaging. While the book delivers some genuinely clever moments and solid scientific groundwork, it stumbles when it comes to character development and narrative resolution.

What Works Well

The premise itself is compelling—Fracassi constructs a limited time travel system with specific rules that feel both innovative and plausible. Rather than the usual "anything goes" approach to temporal manipulation, these constraints create real tension and stakes. The science behind the time travel mechanism is surprisingly well-researched and explained in ways that enhance rather than bog down the story.

Speaking of explanations, Fracassi makes a smart narrative choice by introducing a journalist character who naturally needs the complex concepts spelled out. Rather than feeling like an exposition dump, this device becomes integral to the plot as the journalist's presence directly impacts Beth's struggle to protect her life's work from corporate exploitation. It's elegant storytelling that actually ratchets up tension instead of deflating it.

The book's standout moment comes when a seemingly throwaway line suddenly reveals that one of the established time travel rules has been broken. I literally gasped when I caught it—a testament to how well Fracassi had established the rules and their importance. These moments of realization make the reader feel genuinely clever for paying attention.

Where It Falls Short

Unfortunately, the character work doesn't match the strength of the concept. Beth, our protagonist, operates on a single emotional register throughout: devastated, angry, impatient, and constantly falling apart from past trauma. While trauma responses can certainly be persistent, Beth's one-note emotional state becomes exhausting rather than sympathetic.

Jim, the billionaire antagonist and owner of the Langan Corporation, feels like he stepped out of a cartoon about evil capitalists. He lacks the complexity that would make him a truly compelling villain—he's simply rapacious capitalism personified without nuance or believable motivation beyond pure greed.

The supporting characters suffer from inconsistent development. Tariq, Beth's assistant, spends most of the book being mistreated and ignored by Beth, only to suddenly emerge as her biggest supporter with crucial information when the plot demands it. Jonathon the therapist sends mixed signals throughout—is he Beth's ally or will he betray her to the corporation? Beth's trust in him wavers without clear reasoning, leaving readers unsure whether this ambiguity is intentional characterization or simply unclear writing.

Most frustrating is the Chekov's gun situation with Abigail, who takes Beth aside for what feels like a significant moment to assure her that despite appearances, she has Beth's back. This setup promises a payoff that never comes, leaving the scene feeling pointless in retrospect.

The Unsatisfying Resolution

The book's biggest disappointment comes in its resolution. After building intricate rules and complex corporate machinations, Fracassi essentially throws up his hands and declares that some things are beyond human understanding. Everything gets mysteriously resolved without clear explanation, leaving readers who invested in understanding the system feeling cheated. It's a frustrating cop-out that undermines the careful worldbuilding that came before.

Final Verdict

"The Third Rule of Time Travel" succeeds as a thought experiment about temporal mechanics and corporate overreach, but fails as a fully realized story. The clever premise and well-integrated exposition show Fracassi's potential, but the weak character development and unsatisfying resolution prevent the book from reaching its full potential. Time travel enthusiasts might enjoy the novel approach to temporal rules, but those seeking rich character work or a satisfying conclusion should look elsewhere.

Rating: 3/5 stars

A promising concept that doesn't quite deliver on its potential.

---------------------- Michelle edits Claude --------------------------

I thought what Claude came up with was terrible, but both the blogger and my relative had said that in order to get something usable they needed to edit the AI's initial output and/or do a second prompt with feedback on the initial AI output.  

So I started editing. But I gave up in despair before I was done because:
  • it wasn't fun
  • it wasn't going to be less work than actually writing an acceptable blog entry myself.  And it felt like the end result was going to be inferior too.
When I gave up on editing the AI output, I also decided not to try doing a second prompt.  (See reason #1).

Overall I'd have to say that using AI for a writing task was a fail. Even if you could argue that the failure is on me because I didn't try a second prompt. But I'm willing to live with that.  :-)

<I originally had the text of my attempt to edit Claude below.  But I removed it because I didn't get very far and it wasn't very interesting.>


Friday, 10 October 2025

Night Shift by Natalka Burian

 I found Night Shift on the Science Fiction shelf at the library, but reading the book has made me reflect on book genres and categories of fiction. 

The protagonist of Night Shift lives in 2000s era New York City, working both as a bartender and as a baker. That means that after serving the last drinks of the evening, she dashes across town to a bakery where she makes fine pastries for the morning 'coffee and a pastry' crowd. She can't be late for her second job -- the cafe opens at 6am whether the pastries are ready or not -- and she can't afford to lose the bakery gig because she needs the money to make rent.  But the bar job often runs late and the subway is unreliable, so she is pleased and relieved when a new acquaintance shows her a 'shortcut' between them.

'Shortcuts' are mysterious portals that let you transition between fixed locations within the city -- say from a storage closet in a diner to the backroom of a bar miles away.  Iggy tells Jean that 'everybody knows' about these secret passageways, but all that means is that a few insiders know that they're there (including the staff of the relevant businesses), and that everyone believes that these shortcuts are dangerous, although no one really knows why.

The novel revolves around Jean discovering how the shortcuts really work, how they were created, and who made them.  

So far so good. That's a solid SFF premise. If the explanation leans mystical, the book is Fantasy. If the explanation leans scientific, the book is Science Fiction. Clear, right?

But somehow the book doesn't feel like Science Fiction (even though the explanation turns out to be hand-wavingly sciencey). Instead, I think this is the kind of book agents are looking for when they say that they represent "Speculative".  Sure, the book includes an element of the fantastic (whether scientifically explained or not), but the characters live in the real world that we all share, the protagonist's personal journey and relationships are the heart of the story, and while the fantastical element is important to the plot, it's not important to the protagonist? I'm not sure how to else to explain this last part, except to say that what matters to Jean is the well-being of her former boss, her missing friend, and reconciling herself with the traumas of her past. She fundamentally does not care about the portals. It doesn't even occur to her to say "Teleportation. Holy shit!" And when it becomes clear how the shortcuts were created, no one starts thinking about how TELEPORTATION of all things could be useful or threatening or transformative for society. 'Shortcuts' are simply dangerous, uncomfortable things whose existence needs to be covered up, even for the corporate evil-doers who caused them to exist in the first place. 

That's not a very science fiction way of telling a story.  

There are probably other markers that make this feel more like 'contemporary fiction with speculative elements' than SF that I might be able to figure out if I spent more time thinking about it -- pacing? story arc? -- but in the meantime all I can say is that despite appearances, this is not a genre novel. I find that interesting and a little puzzling, despite my analysis that claims to explain why.


Saturday, 2 August 2025

Killers of a certain age by Deanna Rayburn

I've tagged this one "mystery" but it's really more in the vein of "thriller".  

Our heroines are just-retired assassins who were employed by a private organization that was originally founded to hunt down and kill Nazis who had escaped ordinary justice. Now the four sixty-year-old women are reunited for a retirement cruise. We see their glory days as assassins in flashbacks that show them posing as stewardesses, nuns, archeology students and more to carry out elaborate killing plots that rid the world of various drug dealers, crooked bishops, and yes, even elderly Nazis.

In the present day, the women reminisce about their past while commiserating about lost loves, post-retirement life, and the inexorable symptoms of aging -- until one of them notices something that seems wrong, and they are launched into an adventure that requires them to use all of their skills to survive.

This book has a light-hearted tone at odds with the rather brutal murders that are sprinkled liberally across its pages. Because (of course /s) the very idea of a deadly 60 year-old woman is ridiculous.

I could fault the premise, but it seems to form the basis of the entire 'unlikely assassin' genre: it's certainly the rationale behind books like An Elderly Lady is Up to No Good and the entire Mrs Polifax series.

Killers is entertaining despite its many improbabilities and numerous plot holes, and delivers pretty much exactly what you'd expect on every page.  3/5 stars.