The market can frequently enter an extremely overbought 'bubble' phase. It's perfectly fine when it happens, and if we look back, it has happened a few times already, and we're still here, so there is nothing to worry about.
The technology aspect of it however is not a bubble at all. If we look at all the developments and how much stronger the network has become throughout the years, and how much stronger it will become, we are continuously booking progress. People however don't see that progress because they only focus on what the price is doing, which as I said, is not how it should be looked at. It makes you miss out on plenty of important developments.
While everyone keeps worrying about the price, in the background Bitcoin's killer application (LN) is starting to gain more adoption, and that while it's still in the very early beta stage.