I'm making fun of the stock-bubble-scream-guys as a bubble like the tulips and other historic bubbles only got up once and than dropped down to never come up again. BTC has done the Blast up over 3 times now and every new low is higher than the previous low on the big moves. $6, $100, $800 (if we hold here would we great.. if we tank to $500 would be good too). Never the less, the bubble-fans seems to step by the fact that the price on the long term charts makes higher highs and higher lows, which in my dictionary is an uptrend until there are lower lows and lower highs. :-) Anyway, thanks for your mind-share :-)
May the pips be with you :-)
You can already see this "growth in growth" on your chart. If you look at the very first bubble and the subsequent correction, price action dipped far below your "normal" line. For the second "April bubble", price dipped to the normal line, but not below. For our current bubble, if that's what we are calling it, price will most probably not dip to your "normal" line.
Your linear regression will have to be adjusted accordingly to take into account price action in the future. :)