Does the Planck Length Break E=MC^2?

From PBS Space Time. On November 29th, 20% off the whole merch store! pbsspacetime Every good nerd knows that E=mc^2. Every great nerd knows that, really, E^2=m^2c^4+p^2c^2 Want to know what that even means? Sure, I’ll tell you, but today I’d like to invite you to an even higher level of nerdom with extra bits…