Alan Turing on the £50 note.Read More
BBC Radio Manchester started in Hale, almost.Read More
In October 1949, Dorothy Emmet, Manchester University’s Professor of Philosophy, pulled together a seminar, Mind and the Computing Machine to grapple with Alan Turing’s claims that computers were going to think. As I discuss in my book, they didn’t make that much progress, though the obtuseness of one of the participants may well have provoked Turing to write the now famous Mind paper in which he introduced the Turing Test.
We know a fair bit about the content of the seminar, because a transcript survived, but we don’t really know much about why it happened and, in particular, what effect it had. One of those present was a young philosophy lecturer named Wolfe Mays and, probably his equally new colleague Desmond Henry; his daughter Elaine O’Hanrahan has assembled some evidence on how Turing’s lack of a philosophy of consciousness was received in the Philosophy department (spoiler: not that well).
But this post is triggered by finding a piece of evidence that the participants kept the discussion up at least one more time. It comes from J Yule Bogue, an American running the ICI drugs division which had just moved to Wilmslow, and who briefly appears in my book as Max Newman’s more interesting neighbour, and it is a note to the great American neurologist/poet/cybernetician (not that great as a poet, perhaps) Warren McCullough at MIT about an ‘amusing evening’ on minds and machines.
I wish you had been with us a few days ago we had an amusing evening discussion with Thuring [sic], Wiliams, Max Newman, Polanyi, Jefferson, JZ Young & myself. An electronic analyser and a digital computer (universal type) might have sorted the arguments out a bit.
McCulloch himself had no ‘universal machine’ under construction himself, but he and his (then-)colleague Norbert Wiener were at the heart of the US Macy conferences which were struggling with the same questions as the Manchester seminar, if on a grander scale and more successfully. Interestingly the note shows that the creator of the Mark I, FC Williams, who had either been excluded from Emmet’s discussion or chosen not to go, was included this time, though Kilburn and Emmet aren’t mentioned.
There is a copy of the note in the American Philosophical Society Warren McCulloch archives.
I make a good deal of rhetorical puff in my talks by pointing out the shift in meaning of ‘computer’ in twentieth century science from ‘Hartree’s dad’ to ‘instructable woman’ to ‘machine’. Rather remarkably, even the committee handing out funds for computation was still making the middle assumption as late as 1963. A crystallographer, Kathleen Lonsdale, applied to the Government for funds to support a computer. They turned her down, but she turned to the great goat of the field, JD Bernal, who was able to write to them: “The DSIR have misunderstood Professor Lonsdales’s use of the term ‘resident computer’….The one is animate the other is inanimate.”
The source of the quote is the Bernal papers Mss Add.8287.J/Lonsdale in the Cambridge University Library. As for Lonsdale, she knew what she was talking about, having fifteen years earlier become an Fellow of the Royal Society; indeed, jointly with someone else, the first woman to join Geoffrey Jefferson [see the book] in that company. I’d also been vaguely aware before writing this that Lonsdale she was a Quaker and had been imprisoned in Holloway for non-cooperation with the war effort. Only on checking do I see that, surprisingly to me, it was the Second World War, not the First, when Lonsdale was 37.