The closer we look at reality, the more it melts away beneath our fingertips. Matter isn’t solid at all deep down, everything dissolves into pure energy, endlessly vibrating. Zoom in on an atom and you won’t find hard, tiny balls. Instead, you’ll see vast spaces, shimmering with charged fields, and the ghostly presence of particles that are really just ripples in an invisible sea. In the world of quantum mechanics, electrons don’t orbit like planets and protons aren’t miniature marbles. They’re

How do you know that you know what you know?