Except for the very end, I did thoroughly enjoy this book, and excepting that, I would consider reading another in the series.
I realize that The Thinking Engine had a much greater scope than machinery, not to mention computers, had in that era. It's especially so as that the larger in freedom, the less confined that a computer is allowed to compute, the more unlike human thought and the more ridiculous they become. That's akin to the current craze of having artificial intelligence write this or that ad or story or like Inspirobot writing inspiration. It goes so far off the mark that it's funny. One of the kids showed us an artificial intelligence's created romantic comedy just this week, and of course, it's nothing like romantic comedy. If that's the state of artificial intelligence now, then it was much worse then.
It made me think of Zork and early world-building games that supposedly allowed one to enter whatever directions one wanted into that fictional world. But there was so much that Zork didn't know how to handle. Of course, there have been chess computers that can wade through an impressive array of move choices by rating and ranking them as to their value in achieving the goal, and thinking more moves deep than a human can. But their worth is not in their ability to reason, but in their ability to process and calculate, and that's in them being given a very narrowly-defined set of parameters.
So, originally, I wondered if this book would be one in which we had to suspend belief to accept an unreasonable amount of artificial intelligence in the world of Sherlock Holmes, and I would be disappointed in that ... but because I was already thinking along those lines, I was able to figure out The Thinking Engine much faster than Holmes, and it seemed to take him a long while to accomplish it. Of course, Holmes wouldn't have as much familiarity with artificial intelligence as we have. So you've got a chance at solving it.
I have, also, heard of the Turk before, in the realm of chess. I'm not entirely sure where. My dad facilitated several regional chess tournaments and also dappled in artificial intelligence in chess computers, having one play another in his research for a book on a particular chess opening. So I could well have heard it from him. But somehow I also associate it with the automaton of the cartoon movie Hugo, although I can't remember if Hugo explored the idea in full or not. Hugo, I thought, had a great deal more substance to it than most cartoons.
"The Thinking Engine" story was well done and I would consider another in the series.
"So that's how you can find it in yourself to be so forgiving towards Holmes - your faith inclines you towards charity."
"It goes hard sometimes, but yes."
"I wish I could follow your example."
I liked everything about that exchange: someone trying to live out their faith, and the other person not meeting that with resentful animosity, suspecting him of trying to show up others, but realizing it for what it is - an individual trying to live well.
It makes me think of those who resent the people going to the gym, thinking they do it to show others up, when really they aren't doing it "at" the others at all, but merely because they want to do well taking care of their own bodies. I liked this humble response much better: "I wish I could follow your example." And surely there are different places where each of us (or most of us) have an example worth following. Even if we cannot humanly do it all, there are things to admire in others without feeling put down by their endeavors.
This book had the same issue as Benedict Cumberbatch's TV series modern version of "Sherlock," when I quit watching it with ("His Last Vow" 3rd episode, 3rd season) which, I suppose, makes me a more of a "purest" of wanting to stick closer to Sir Arthur Conan Doyle's intentions. It seemed less a part of the plot in this book than in that episode, however. Perhaps that made it more cold-blooded and more matter-of-fact and I wouldn't continue with the book series, either, if that became more of an issue. Sir Arthur Conan Doyle's Holmes was more moral than that.
Favorite quotes:
"It has always been true that those who routinely and energetically do good are considered suspect, their motivations questioned. Such is human nature, to regard altruistic behaviour as though it were a disease or a mental disorder. It is also true that possession of an acute intellect is an attribute many find intimidating... The average person does not care to be reminded of his averageness and hence looks askance on the above-average person and views with deep mistrust and even hostility the exceptionally above-average."
"I am not wholly averse to publicity but neither am I wholly comfortable with it, certainly not to the extent that you are. I have a high enough profile as it is without my face appearing in the papers." This made me think of today's social media.
"He seemed the type to hold a grudge, and to enjoy doing so." There are some people who enjoy holding grudges. I think they feel validated by someone's offense, as if that made them more worthy somehow - either because they were important enough for someone to attack or because they were worthy because of all the injustice they've bourn, a sort of martyr's complex.
"My loyalty to Holmes, however, prevented me going. We had been bosom companions for fifteen years ... There would come a moment, I was sure, when sense would return to him and he would reach out to me. He would find me waiting patiently, good Watson, faithful Watson, steadfast as a Shire horse." There is a balance between being loyal and being a doormat, and Watson does give up quite a lot in his friendship with Holmes. Still, all in all, he does so because he enjoys the friendship and is able to do so without resentment, most of the time, so I think he's still on the loyalty side of that loyalty/doormat coin. And I hope that I would be as "steadfast as a Shire horse" also.