What i was thinking is all the people who are currently holding bitcoin can convert it to any alt like maybe monero and let the price of bitcoin go more down and then buy when yiu think the price won't grow more.
Disclaimer:
I would recommend only for those people to do who will get some sort of profit by selling their bitcoin if you purchased at a higher then i would recommend you to refrain from doing this.
It seems like a good way to hedge your investment in bitcoin but not necessarily a good way to invest your money and make a profit.
If you want to take risks and you're willing to do that then maybe you should just try shorting bitcoin. Very very very risky, especially when you're doing it with leverage like 2.5x which means if bitcoin rises by 40% then you'll have nothing left.
I suggest using Ethereum though if you were going to hedge against bitcoin with an altcoin because it is the most well known altcoin.
It's really all up to you though what you do with your coins.