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gwern's avatar

> Strangely, the length here happens not to rule anyone out, since Larry (Page) was the only other reasonable guess.

It's true you can't rule out Larry just from that signature, because 'Google/Deepmind' and a 5-letter name correlate equally well with 'Larry' and 'Demis'; but it is more likely to be 'Demis' because of the external evidence that Hassabis is the one that Musk keeps going around and using as the example of the enemy in OA contexts (Larry's just the funder). Then for internal evidence, you can check the first forwarded email, signed by another 5-letter name, and see that it has to be 'Demis Hassabis' because 'Larry Page' is way too short to fit the 14-letter or whatever email name. So 'Larry' becomes highly implausible - the entire email convo was sparked by a *Demis* email! Why suddenly switch to 'Larry'? That would be illogical. So, it's 'Demis'.

Also, the Claude reconstruction is obviously wrong, because CCing Demis on an internal email attacking him makes zero sense. (The CC is almost certainly Andrej Karpathy, given Musk forwarding Karpathy's email as the new Master Plan for OA, and the implausibility of CCing someone entirely unmentioned hitherto on such important strategic internal emails/planning; but I haven't checked the length of the CC name vs the forwarded plan email name.) However, Claude wasn't given the right information so doesn't mean much. The right prompt would be to specify each redaction in character count, as converted from the em width and engineer a prompt with plausible names and their character lengths to ensure as few unforced errors as possible. It looks like Claude-3 might have changed the tokenization, possibly even all the way to a character/byte-encoding, but it is still bad to force an LLM to do such discrete low-level character manipulation tasks unnecessarily. (I'm impressed it did as much as it did from... is that just a *screenshot* of the web page?!)

Although the best approach of course would be a proper cryptographic approach which uses a LLM and standard maximization algorithms, provides a rich prompt of metadata like candidate names/context/related-documents to enrich the probabilities, and exploit the fact that each individual word length is leaked, to iteratively search through all possible graphs of completions to maximize the exact likelihood. (Something like https://en.wikipedia.org/wiki/Viterbi_algorithm ) A prompt-only approach is like a worse version of a single iteration of that, unnecessarily local, sloppy, and running only once on only one candidate solution.

Banana's avatar

Hang on, the woman responsible for writing the AI principles at Google is named Jen Gennai?

This is simply too much.

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