There is always experience. There is always other people and their experience. There are always books. The information is out there. Especially if you know you’re dense. Like Socrates: I know I am intelligent, because I know that I know nothing.
But if you’re close-minded, there is no hope. You’ve already decided who you are. You have a confirmation bias, so it doesn’t matter what new information you’re presented with, your mind is made up.
And if you’ve made up your mind on things and who you are, and decided that you’ll always be that way, there is no reality where you’re different from the way you are right now. Which is more like the Edge of Tomorrow than reality.
That’s not what life’s about. The longer you live, as long as you’re doing it right, the more truth you have. Through experience and sharing. But once you make up your mind that you understand it, you start discrediting other people’s truth, refusing new experiences, stop learning new things.
So don’t be close minded. Remember that no matter how much you know, you know nothing. That way, there’s always hope.