Originally Posted by CCA
Further info on useful conciousness.
50,000' 6-9 sec
45,000' 9-15 sec
40,000' 15-20 sec
35,000' 30-60 sec
30,000' 1-3 min
25,000' 3-5 min
22,000' 5-10 min
18,000' 20-30 min
15,000' 30 or more mins
Cheers CCA
What does "useful consciousness" mean?
People live at 15 000 feet and above - carry babies to term, drive cars on curved mountain roads, etc. etc., day after day for their whole lives.