Completely off-topic, but I recall hearing that Boris spent some time in Japan before Anthropic, learning to make miso paste the traditional way while living there. Interesting to see that he's been interested in lacto-fermentation for decades now.
Only bc we’re on a nerd site, miso doesn’t involve lacto fermentation in any significant way. And I guess you can pickle cherries in any number of ways that aren’t lacto fermentation.