Human thought entropy is very low.

In 90s film The Game, Michael Douglas answers bunch of questions, which later some software uses to get crack all his passwords.

AI tools can easily do this now by profiling users on posts etc, and will only get better.

Public-key crypto is the clear and simplest solution, which the world will soon use. R&D on key management tools we build in nostr and bitcoin will be very important and utilised everywhere.