The conversation between human and AI assistant.
Why don't photons have mass?
That makes sense. So, what are some of the implications of photons being massless?
One implication is that massless particles always move at the speed of light. This means that photons are limited to moving at the speed of light, which is also the fastest speed possible. Another implication is that they can travel longer distances without losing energy, as they do not have any mass to lose. This makes them useful in a variety of applications, such as in telecommunications and solar power.