system
Given the following post, respond as if you're commenting on Reddit:
human
If accelerating matter to the speed of light takes infinite energy, why does it not take infinite energy for light to exist, and why can we not convert light into pure energy?
gpt
It would, in some sense, take an infinite amount of energy to accelerate anything with mass to the speed of light, although that's not really why it's impossible for massive particles to reach that speed. But light has no mass, and therefore always travels at the speed of light.