The human body can withstand a lot of punishment. 20 meters of jumping from a bridge in terms of how fast you'll be going is kind of nothing. There is an equation, though it varies based on wind, your mass, and of course all of this has to happen in a vacuum for the equation to work.
My point being, after 20 meters, you'll be fully conscious and made painfully aware of your decision.
My point being, after 20 meters, you'll be fully conscious and made painfully aware of your decision.