Previous title "Beyond the sky"

William315 asked Cirrus: "what's the highest altitude you can reach before you either get lightheaded or too little air pressure for you to fly higher, whichever comes first."

"My flight doesn't actually rely on air or anything, I can just do it somehow. Because of that, and apparently having pretty durable lungs, the highest I've ever gone was, apparently, into the thermosphere! I don't know the exact height, but it was less than 99 miles, since I could still faintly hear. Can't safely go much higher, it was SO cold up there, and I could feel the low pressure trying to pull the air out of me. The view up there, though... Man... Can't believe a sight like that was above us all this time... I wish I could go even farther up than that."