Peter Brandt allowed bitcoin...//:::
The thing with these "Gurus" is that they are to the extent a route to look at, not necessarily where to go, but something interesting about that 'beak' that he calls the upper level, is what I always mention, we are at an interesting point with bitcoin, which is very successful from the point of view of its existence.
We always want to see bitcoin grow, but what if that 70k top becomes the new 10k, it is a very simple analysis, on the historical, sometimes the best reference, the 10k! we forget but in my case it is one of the bands that was most difficult to overcome... so, yes, there is a basis for that idea presented by the guru you mention.
But always, they will be speculations, and as I mentioned the route to follow is your decision, always.