This man is about to dive 20m off the top of a cruise ship.
What will happen to his body when he hits the water?
Well, luckily for him, and others, the impact of hitting the water wouldn't be the worst part of going overboard.
The worst part would be what would come next.
Being lost at sea.
Even if you're wearing a life jacket, surviving all alone in a giant body of water until someone rescues you will not be easy.
What would be the biggest threat to your survival?
How could fish eyes save your life?
And how long would you have before the water starts breaking down your skin?
This is What If.
