Of course there is sentiment and momentum. Almost all markets have their own, driven by news stories on the one hand and given by MACD on the other. MACD by its nature periodically gives you positive and negative momentum, and the peaks and troughs are good indicators of the extent. Current sentiment around crypto is mostly bearish as regulators refuse to entertain crypto ETF's. What's really interesting is how much less convincing each crypto rally is nowadays. This has been a fascinating study of mass global Homo Sapiens greed in what has been the biggest speculative bubble to date. And yet something useful will still likely come out of it in terms of a few killer Blockchain apps, that will probably become household names in a few years time.
