Today cryptocurrencies are still a social phenomenon and not a financial one. So, aside from the price spikes resulting from whale manipulation, I think the best KPI to evaluate the approaching bull run is good old Google.
Analyzing the search data on Google trends it would seem that there is not yet the peak of interest that one would expect after#BTCalways close to 100k.
Not only are we far from the previous two peaks of interest, but current interest also appears to be declining sharply.
What do you think?