+1 to this.

Although i think it will be bitcoin that bursts, not altcoins.

Those buying altcoins usually have a degree of knowledge as to their value, especially with tokens.
They see the worth of the project and most are buying based on value more than on hype.

Bitcoin has been bloated by hype. People who have no understanding of this market have begun buying bitcoin and when prices start to stagger and correct a bit they will all pull out, causing a crash.