system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does music in 4/4 time sounds more natural to us?

Is there a reason why weirder time signatures sound a bit more strange other than we are used to listening to simpler ones?
gpt
Part of it is what we are conditioned to listen to. Lots of music is in 4/4 so it has a context we can fit it into. As a professional musician, I've played lots of music in many mixed meters, so those don't sound or feel awkward to me anymore. I've been conditioned to have a way to understand them compared to lots of other examples. 

But on a more biological level, a lot of it probably has to do with our two feet. Left, right, left, right. It fits the rhythm of 4/4 better than, for example, 7/8.