Yes, but isn't that all we have if we are to escape the "reef of solipsism" and avoid coming to a conclusion like, "I am the only existence in the universe. Everything is a projection of my mind.*" or "None of this shit is real. I'm a brain in a vat, part of some super-being's evil experiment."? If I seriously believed that I would be clinically insane. So it comes down to what it always comes down to: We need each other.

* Wait, what? Did Descartes say something like that?