Counterintuitive Facts (1): How Do You Prove You're Not a Brain That Just Popped Into Existence From the Void?

I. You are reading this line right now. You remember what you had for breakfast this morning, what happened yesterday, your childhood, your name, the people you love. You believe you live in a universe that's 13.8 billion years old. With hundreds of billions of galaxies, a 4.6 billion year old Earth, a long history of human civilization. You assume all of this naturally exists.

II. Physicist Ludwig Boltzmann tells you: Wrong. This universe is too "orderly." According to the Second Law of Thermodynamics, the universe tends toward disorder (entropy increases). For such a grand, precise, orderly universe to spontaneously emerge from chaos, the probability is nearly zero.

III. But Boltzmann discovered a terrifying corollary: Compared to the birth of an entire universe, a random quantum fluctua