Feedback and cybernetics
I'm interested in cybernetics, which means I'm interested in feedback, and when you express an idea, you receive feedback in the form of memes from people around the world, it is mirrored in them, and that makes it easy to validate or reject the idea, and to re-orient attention based on the signals bouncing back, like sonar for echo-location.
Always great to have cybernetics around they improve us in the best way