People who set challenges like this just don't understand money. $100,000,000 will buy you and everyone in your family a house, a car, food, drink, hobbies, holidays, almost anything you could conceivably want for the rest of your life. And that's even if you blow it all and don't even bother investing. It's an insane amount of money. 30 seconds for five years is 15 hours. That's a pay rate of $6,600,000 an hour. Just to be in the sea.