system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If two rockets move away from each other at 0.75 the speed of light, would each appear to be going faster than the speed of light from the other rocket?

And if not, why not?
gpt
No, they'd see each other moving at 96% of the speed of light due to special relativity. Strictly speaking, if the rockets were moving at 100mph then they'd see each other moving at very slightly less than 200mph, but it's so close as to make no difference. Once the speeds get higher, you start having to worry about the difference.