@Slereah Once we grasp the underlying principles

10 Million Vaccine today or not?

the strings conference started

gigachad Veneziano is talking about S-matrix theory

why does CPT flip the sign of helicity?

@Bohemianrelativist Helicity is the dot product of spin and momentum. C does nothing (no charges), P reverses momentum but not spin, T reverses both momentum and spin for no net sign.