>In many cases, what you're working on doesn't have an answer on the internet.

>That usually means the problem is hard or important, or both.

Really ? If a problem is important someone likely already tackled it. I mean 15 years ago this was less likely, but these days there's so much work in the open and search is very good, when I find there aren't any references for my problem it usually means I misinterpreted the problem or I'm doing something very niche.