It's certainly a top tweet for 2017, If he loses clearly it's not going to happen. What will actually happen if he loses?

He'll be dead...The guy is 73 now

He'll eat some dick from an animal nobody knows and they'll say it's a Myown like a fear factor episode. See he ate My own dick (chuckle chuckle)

Claim he made a miscalculation or something, But gives a large charitable donation

What do you think will happen?

http://planetfreewill.com/john-mcafee-bets-bitcoin-will-move-500k-within-3-years/
https://www.rt.com/viral/396791-mcafee-penis-bitcoin-price/
https://www.coinspeaker.com/2017/07/19/john-mcafee-bitcoin-price-prediction/