For me the sign of a bull run is when bitcoin can gained +2000$ in just a single day , from 8000$ to 10,000$ in jus 24 hours is sign that bullrun has just started.
Huge jumped can bring more hyped, and for sure if that will happen in a single day it will push more investors to ride in and the real bull will strongly dominates the market, from what is happening right now there's still some reversal where the trend is changing between the bear and the bull and vice versa, it's not what we all expecting and experienced way back 2017-18.