Does one thing lead to another?

摘要

THE thing about Gedankenexperi-mente-or thought experiments, for those who find Albert Einstein's native tongue too twisting-is that you never know where they might lead. For Einstein, they led to the theory of relativity. For James Clerk Maxwell, they conjured an imaginary demon who could violate the second law of thermodynamics. For Erwin Schrodinger, they created an existentially confused cat that was simultaneously dead and alive.