Marvel thinks they invented the epic crossover? Please. Physics assembled the greatest minds of a generation before the Avengers were even a twinkle in Stan Lee's eye. This legendary 1927 Solvay Conference photo features Einstein, Schrödinger, Heisenberg, Curie, Planck, and other intellectual titans who collectively rewrote our understanding of reality while Hollywood was still figuring out how to add sound to movies. These quantum mechanics pioneers didn't need CGI to bend reality—they just used math and shattered our perception of the universe over afternoon tea. Now that's what I call an ambitious crossover.