Bubble is such a powerful word cause it somehow states that the whole market is based out of nothing. Corrections are normal in all markets and I think that many alt coins are over valued. With that said, not saying it won't continue going up. I'm bullish on crypto and will continue to hopefully make gains while being cautious not investing too much in coins with non existing fundamentals.

Here's a technical analysis I just posted. An example of a coin that I think will blow up soon:

Library Credits (LBRY) - Analysis https://steemit.com/steem/@benkalashnikov/library-credits-lbry-analysis