Originally Posted by crazydrummerdude
Hypoxia, baby! Try it at 25,000. I'm "certified" by NASA up to 25,000!
(Whatever that means.) They put us in a room and sucked "all" the air out. One guy in the group before me started tap dancing, but after it was over had no recollection of it!
Yikes. Sounds like a safe spot to try it, anyway.
Put my pack down to take a break at the top of the pass 18.5k (Thorung La for those who've been). Continuing on I'd covered three or four hundred meters before realising I didn't have my pack on. Larkya La was a similar altitude, but I'd been at 12k - 14k for two weeks so it didn't seem to affect me as much.
Altitude and pressure are not linear.