Your brain has far more neural circuitry allocated for wanting rewards than for liking them. - James Clear

One sign you haven't done enough reading is if you find yourself agreeing with whatever book you read last. At first, it's easy to be swayed by any reasonable argument. Once you've read a lot, you can see that even the best arguments have limitations.

Bamboo can barely be seen for the first five years as it builds extensive root systems underground before exploding ninety feet into the air within six weeks.

How to see opportunities others miss:

1) Study a totally different field, then return to the original problem. Apply insights from other domains.
2) Invert the problem. Try to achieve the opposite.
3) Talk to hyper-creative people. Their thinking will rub off.