1The Large Hadron Collider was built to investigate subatomic particles under conditions that existed microseconds after the Big Bang.
2Can subatomic phenomena ever be fully reconciled with the macroscopic laws of classical physics?
3Quantum field theory does not treat subatomic entities as tiny billiard balls but as excitations in underlying fields.
4Do not assume that subatomic behaviour conforms to the intuitive logic of everyday experience; the quantum realm is profoundly counterintuitive.
5There is a growing consensus that understanding subatomic interactions is essential to developing a unified theory of everything.