When will the next big crash happen?

Since Trump won the election, the crypto world has surged and reached record highs. However, if we compare it to historical data, we can anticipate that a big crash might happen anytime in the near future. Basically, because it always did it before in each cycle. Some claim that Trump will adopt an official strategic crypto reserve for the US and so it will pump it even more. But what's actually sustaining the current price?