Is Tony Stark’s arc reactor possible? Neil deGrasse Tyson explains the science behind it

Astrophysicist Neil deGrasse Tyson explains why Iron Man’s arc reactor is scientifically impossible. He highlights the insurmountable heat and storage problems associated with generating so much energy in a tiny device. Despite the scientific hurdles, Tyson still considers Iron Man a “scientifically believable” hero due to his reliance on engineering.