That's not a safe bet.
https://en.wikipedia.org/wiki/Michael_Burry, which the film "The Big Short" is based off, correctly predicted the 2007-2009 collapse of the housing market, but nearly lost everything waiting for it to occur.
> During his payments toward the credit default swaps, Burry suffered an investor revolt, where some investors in his fund worried his predictions were inaccurate and demanded to withdraw their capital. Eventually, Burry's analysis proved correct: He made a personal profit of $100 million and a profit for his remaining investors of more than $700 million. Scion Capital ultimately recorded returns of 489.34% (net of fees and expenses) between its November 1, 2000 inception and June 2008. The S&P 500, widely regarded as the benchmark for the US market, returned just under 3%, including dividends over the same period.
You can be right and still not be able to safely profit. Especially in crypto, where shady exchanges can wipe out a big short position pretty much at will with some wash trading.