Tons of people have referred to that proclamation. Only a month left for it to prove its mettle.

Once upon a time everyone swore by a chart by this fella - https://www.tradingview.com/u/PentarhUdi/

This one specifically - https://www.tradingview.com/chart/BTCUSD/YRZvdurN-The-target-of-current-bubble-lays-between-40k-and-110k/  - until its prescience came to an end and he himself admitted he didn't really know what's what any more.

Some make good calls but they all fade away in the end. I don't expect this one to be any different.