system
A chat on subreddit /r/me_irl
human
aisle seat is the best cause u get to go to the bathroom whenever u want without waking up people next to you
gpt
Plus you can have more leg room with one of your legs. I guess in theory, the last flight I had the attendants always brushed up against me and I had to move for the cart. But for the times you need to stretch out a bit... 

My knees get all weird and sore for some reason, and then I need to stretch out my leg like 10× to get them to pop. It's strange