I'm not sure if skill caps are the problem. In literary precedents, wizards were essentially scholars who occasionally used magic. You could basically strip down a rogue (d6 HD, 8 skill points, Med BAB) and then replace their rogue abilities with arcane magic, and you would get the archetypical wizard. Of course, this basically turns them into a bard, but is that entirely surprising? Obviously this precedent has obviously changed in recent fiction (e.g. Harry Potter, Malazan, etc.).
The Name of the Wind!
Ok, you can't really try to emulate that in D&D unless you play a one player campaign.
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