>>Conan-Doyle: "... Depend upon it there comes a time when for every addition of knowledge you forget something that you knew before. Therefore, it is important not to have useless facts elbowing out the useful ones..."
Sounds like I'm in trouble. :-)
More seriously, I see this as a kind of 'vital fluid' thinking. I loved his stories as a kid; glad I didn't use that as actionable advice (probably too late then anyway as I was plowing through my dad's Harvard Classics at the time). For anyone looking to keep lots of disparate information in their heads, the secret is first finding a framework it all fits in. I'm growing more and more convinced that frameworks are the key to how our brains work.
Apologies for having gone far off topic...