system
Given the following post, respond as if you're commenting on Reddit:
human
Eli5 How can some particles have no mass?

I know photons are one such particle. How is this even possible?
gpt
another way of looking at it is why does anything have mass at all? You're assuming having mass is the natural state of any particle. Turns out, mass seems to be "given" to particles that interact with the higgs field. Photons don't really interact with the higgs field the way an electron does. So it has no mass.