[coldtea]

>I don't want to remember more of what I read; I want to have access to a breadth and depth of ideas I can justify with evidence.

That's bad, because without remembering you don't have the ability to quickly know where to look for those ideas and how to evaluate them. Nor do you know how to justify them with evidence (because that depends on remembering domain knowledge of evaluating, classifying and using the evidence itself).

Even if we assumed that you kept a working memory of "first principles" of every knowledge domain you're interested in, and only cared to search and evaluate ideas on demand, you'd still be at a disadvantage to anybody who remembered not just first principles but also higher level information about the knowledge domain -- and thus could skim through tons of BS or bad ideas and sources of information and quickly pick and evaluate only what's relevant.