[denton-scratch]

The idea that history is wrong to focus on "chaps" derives from marxism; and Fergusson is very much anti-marxist. The marxian view would be that historical change is the result of economic forces; that if (e.g.) Turing hadn't done it someone else would have, because economics was driving history in that direction.

I'm sympathetic to the marxian view of Great Men; I think it's no coincidence that the related work of Godel and Turing was published within a couple of decades of one-another, or that the ideas of Copernicus, Kepler and Galileo emerged around the same time as one-another.

I'm certainly impressed by the greatness of Great Men; but I'm hard-pressed to find one whose discoveries were so remarkable, in the context of their times, that noone else could have been expected to make similar discoveries around the same time.

[cxr]

Alternative angle: among their insights and discoveries, the successes will be shaped by survivorship bias. When deciding what part of one's work to focus on, a person will pursue the things that are close enough to other contemporary work at the time, because it provides a short path to buy-in.

[tialaramex]

Turing was interested in a bunch of other stuff, but what people know about is the Computer and his war work (at Bletchley Park). His work on say Morphogenesis (why are zebra stripes different on each animal?) is little known.

But Turing probably isn't more important to how you get from the Treaty of Bern in 1874 (creating the UPU thus you could now practically write letters in Paris and send them to New York and it Just Works™ albeit it's expensive and slow) to the Internet than, say, Godel (more fundamental observations about the nature of mathematics that underpin computation) or Grace Hopper (the first compiler although today we'd say this is only a linker). Her Navy bosses couldn't immediately see any value for it. But Grace is apparently the first to make use of the meta-applicability of computing - the minutiae of actually programming the computer are tiresome, a lot of rote tasks perfectly suited to a machine, so, why not have the computer do those parts for you?