How do you define smart?
Someone with a higher IQ? Someone with a higher level of education? Someone with more experience? Someone with a different experience? We can learn something from everyone. I’ve often found what jolts my way of thinking (and therefore my creativity) is talking to people who have little formal education. Unfortunately, education tends to turn out cookie-cutter thinkers. “Self-educated” people, who read a lot of different things, who tend to do manual work and whose minds are therefore uncluttered by their day jobs, can have mind-blowing insight.