I found that explaining concepts that I think I understand well to other people in a way that is easy for them to understand makes me either realize I don't und

I found that explaining concepts that I think I understand well to other people in a way that is easy for them to understand makes me either realize I don't understand it as well as I thought I did or I figure out something new in the process. Couple that with the fact that you're spreading knowledge that might be new to others and/or possibly stimulating some kind of intellectual conversation with others who already know the subject matter and it's a win-win. So don't let the fear of looking dumb next to an expert in some field demotivate you from contributing.