Wednesday, October 8, 2025

Chart Of The Day -- October 8, 2025

Locator: 49331CAT.

Up $11 / share today. In early trading. Later, in mid-day trading, up $22 / share.

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The Book Page

Perhaps the three best books of a non-technical nature on Alan Turing:

  • Alan Turing: The Enigma, Andrew Hodges, first published in 1983; link here;
  • The Universal Computer: The Road From Leibniz to Turing, Martin Davis, c. 2000
  • The Man Who Knew Too Much: Alan Turing and the Invention of the Computer, David Leavitt, c. 2006.

Can anyone connect the dots? It practically jumps out at you, if you know the story.

The Man Who Knew Too Much: Alan Turing and the Invention of the Computer, David Leavitt, c. 2006.

Chapter 1: The Man In The White Suit -- very short.

Chapter 2: Watching the Daisies Grow -- a long chapter. I would like our daughter with five-year-old twins to read this chapter. Truly amazing -- Turing's coming of age, her quirks, personality, the poster child for concrete thinkers.

From page 14:  

Also from page 14:

I find that a lot of the replies I get from ChatGPT are very similar to the vignettes above.

Chapter 2 was much more interesting due to my eclectic reading program back in 2004 and thereabouts:

  • C. K. Scott-Moncrieff and Proust
  • Virginia Woolf, Lytton Strachey, Leonard Woolf, and John Maynard Keynes (the Bloomsbury group);
  • Bertrand Rusell; The Apostles; 
  • E. M. Forster; 
  • The Well of Loneliness(1928)
  •  Middlemarch, George Eliot, and Mr Casaubon

Chapter 2 also lays the groundwork for the math and physics that would follow. 

Chapter 3: The Universal Machine

Now it starts to get a bit more difficult. A very, very long chapter. 

Chapter 4: God Is Slick.

It begins: Turing had now provided a definition for a whole new category of numbers, the "computable numbers."

Chapter 5: The Tender Peel -- 1938 -- a critical year.

Perhaps the most interesting chapter with regard to development of "the bombe," p. 175.

The second generation bombe, p. 180 - p. 181, invented by Turing, in 1939, or thereabouts. Not earlier.

Chapter 6: The Electronic Athlete

Chapter 7: The Imitation Game.

Chapter 8: Pryce's Buoy (link here).

Maurice Pryce, first mentioned, on page 115. Pryce, 1913 - 2003, physicist and professor at Oxford. A friend of Turing's.