system
Given the following post, respond as if you're commenting on Reddit:
human
[DC/Marvel]Doesn't running around the world really suck for speedsters?

This has always bugged me about characters with super speed. A lot of the time they are shown running around the world, passing pyramids, monuments, whatever, and just being completely fine.
However, many portrayals of speedsters show that from their perspective, they are moving at a regular speed and everyone else is really slow. If that's the case, then from the Flash's perspective, he's just running at a normal pace around the planet.

If this is the case, how are they not completely exhausted?

>Plus, boredom. It's about 5000 miles from Tokyo to San Francisco. If it feels like he's jogging at an easy clip, like 5mph, that means subjectively it will feel like 40 days to cross the Pacific Ocean.
How do they navigate? It's not like they can stop and get a GPS signal.
gpt
Speedster powers generally come with selective perception of speed. If a speedster is having a conversation with you they're not taking notes because it feels like a month to them. So if they want a quick jog across an ocean to feel like a quick jog they can.