great to see this discussion here also ! I was watching it and it is providing some very interesting ideas indeed
for me the crucial part of Andrej post is this one:
The tedious part of maintaining a knowledge base is not the reading or the thinking — it's the bookkeeping. Updating cross-references, keeping summaries current, noting when new data contradicts old claims, maintaining consistency across dozens of pages. Humans abandon wikis because the maintenance burden grows faster than the value. LLMs don't get bored, don't forget to update a cross-reference, and can touch 15 files in one pass. The wiki stays maintained because the cost of maintenance is near zero.
as of course this upkeep is the hard part, and where things tend to bog down
another angle that I have floating in my head (concept still but I’d be interested to hear if anyone else would use that)
- telegram is a big source of info for me - channels, groups etc
- a bot can be created to which you can forward stuff, with your simple comments
- then a receiving client can help to review this incoming piece of info
- and suggest where to add it, or create new tiddler, what tags etc could be applicable etc etc
I would not want for LLM to write my thoughts for me, but yeah I would not mind for it to do all the mechanics behind the scenes 
another project I saw inspired by this literally yesterday - great topic indeed! as long as we use it properly (self hosted LLM etc)