Lions mane didn't seem to do much for me. My memory is actually not that bad, though certainly I have seen people with _much_ better memory than mine. I still maintain contact with some of them I met in college, and then later in the various companies. It's just that I deal with so much information and so many streams of it, even writing it down would be a massive chore.

I would pay for a pre-packaged system which could _locally_ and _privately_ make sense of all the emails, PDFs, slack messages, web pages I saw, other documents shared with me, code, etc etc, and make it all easily queryable with natural language, with references back to the sources. Sooner or later someone will make something like that.