Freefall from the edge of space

[Future Raptor Ace]

Originally Posted by Merci Alizée

I'm sure that very not anyone could do this. I'm looking for bit more detailed answer.

Fine ill try to explain this as best I can.
As you may or may not know with scuba divers, when they dive they have to dive in intervals with rest in between. That is because the air is getting denser and denser as they dive deeper and with every breath they are taking in more air than their bodies can handle. The reason for this is the density and pressure of any fluid is a function of depth/altitude. As you go deeper there is more fluid on top of you pushing down on you creating more pressure and therefore a greater density. Right now at sea level, you feel about 14 psi of pressure from the air above you. That 14 psi is the air pressure at standard atmospheric conditions in which is 1 atm (Atmosphere). Now as one goes higher in elevation the opposite is true from what I mentioned before. There is now less air pushing down on you so the pressure in psi or atm (which ever unit you like more) goes down. Since pressure is going down, air density goes down as well since there is less pressure pushing the air molecules together. Now when you are at sea level you breath a certain density of air molecules, which is 1.2250 kilograms/meter^3 ... as you go higher that density decreases so now with every breath you are taking in less air since the air molecules are space further apart. This causes altitude sickness, disorientation, blackouts and various other things to the human body due to lack of air. However if someone is very physically fit, their body like a runner is able to take in more air than most people, as well as operate more efficiently in situations where they are not getting optimal airflow.
As for the Gs, that's self explanatory, the more positive Gs the more you weigh and that causes a lot of strain on the body in every way.
As for being a skilled jumper, he has to know when to deploy is chute, he as to know how to position is body to reduce Gs, he has to keep control of his fall so he does not tumble out of control and final he has to dismount from the capsule carefully so he falls with the right trajectory and once again does not tumble out of control.
If you want a more detilaed explination than this I suggest you contact Felix himself and ask