When you heard bitcoin is going to end, just think that they'll just take advantage of buying it for cheap price. Bitcoin has gone through a lot of tough times and it survived. The math is real and cryptography is real, man. And so is cryptocurrency. The author from the OP's link says, bitcoin is worthless and more than worthless, he's saying that is stupid as fuck. He doesn't have a proof. look at the market price now. It has been proven a lot of times. That article wont survive and bitcoin will still survive.