I disagree with this and it’s an excuse for people who don’t want to think.
Which is fine, I guess. It’s everybody’s right to not want to think.
But it doesn’t change the fact that in the vast majority of situations, coming up with a solution is possible. The trick is then to come up with one that’s slightly better and then slightly better and so on until you run into the limit of what you’re capable of.
Challenge people to be creative. It’s a skill that can be developed with practice.
The next time somebody says they can’t come up with a solution because of their low rank or whatever, try offering them $10k out of your own pocket to come up with any solution.
Suddenly, I’ll bet, a solution comes to them!