[jstummbillig]

When are you or anyone more likely to get access to a rare book:

a) When a company has made a digitized copy of it

b) When a few previous hard copies are kept somewhere in the world

Idk what Anthropic plans to do with this, but note that my original comment was not about Anthropic at all. I simply think it's a good tradeoff to destroy a few copies of rare books if that helps digitizing them. I am not against simply legally forcing companies that do this to release those copies in due time. In the meantime I am also happy to have them as part of the LLM corpus.

> illegally?

No, copying rare books is very likely not illegal, because, presumably, they are quite old.