Quantum mechanics and general relativity are two of the most successful theories of science ever, but they don't necessarily fit together. Learn why physicists are trying so hard to discover a quantum theory of gravity, and why it's been such a challenge.For ad-free epsiodes and other exclusives, join us for $3 a month on Patreon: https://patreon.com/whythisuniverseSmart Passive Income PodcastWeekly interviews, strategy, and advice for building your online business the smart way.Listen on: Apple Podcasts   SpotifySupport the show