Wow, that is so risky, you can loose all of your money you know? But if it will rise by 400$, you will win so much of money
Its very risky, but if you think about the halving that is coming and the fact that the bitcoin is getting bigger everyday, its very possible he will be a rich mean because he sold his house.
I think its pretty cool he did it and also a good choice because you can invest in something else but the bitcoin is the currency of the future.