Here is a theory I have been flirting with: By looking at historical data, its ridiculously obvious that Bitcoin is one hell of a bet when its down 70-80%. With smarter institutions coming into the space, instead of idiotic retail investors, 80% bear markets might now be a thing of the past. Now the buy area will be 50-60% because hedge funds and asset managers will simply not allow the price to get that low (in other words, Bitcoin prices will become a bit more efficient). This goes along with the theory that Bitcoin will become less volatile over the years (and the data support that theory)
I think this will hold under most scenarios except if Bitcoin goes into such a huge speculative frenzy driven by regulated and unregulated leverage that a larger correction becomes inevitable