not this image again. this image has been posted more times than i have satoshi
and if you want my answer, i say we are currently in the
blow off phase when the despair had already happened at the bottom price of $1830 and it is slowly coming back up to the "mean"
What are you on about?
The bubble moved out of the stealth phase at around $1000, differing from the mean. If you look at a chart, you can see the bull market beginning at around August to October 2015. In late 2016 it starts pushing unusually fast, moving into the "awareness phase". In about March 2017 there is a notable sell off, which is the "bear trap". Then the price begins jumping sharply at the start of May, which is when the "mania phase" begins.
During the mania phase there has been some swings, but only relatively minor ones. Even the drop to $1800 was not very significant. Now we are going so rapidly upwards that it is blatantly the "greed" or "delusion" phase (which is why the public, including you, are having delusions about where we are in the bubble).
The bubble may have further to go up, but I'm already mostly out as I've been buying stuff with my coins over the last couple of days.
The "mean" is somewhere between $800 and $1200 if you ask me. I expect a bear market to bottom out around $600, which could happen in the next two to three years.
It depends on if you are talking short term or long term. You are talking about the changes over the last couple years, so I assume you are talking about a long term view of bitcoin, and indeed that chart if meant to be a long term view from stealth to full public "mania", which only happens once in an assets lifetime (sure bitcoin had a bubble like this in 2013 but the mania was among the stealth phase people, it was a very tiny bubble in the stealth phase of that bubble chart). And according to that graphic the real price rise doesn't even start until after institutional investors have all gotten onboard. This hasn't even begun to happen yet! We are just now moving into awareness stage. On the global "public" scale of that chart this year we finally started moving out of the stealth phase.
I expect over the next year or two investment firms will start buying up bitcoin and letting their clients buy bitcoin through them, when this starts happening you can know for sure that we are in the awareness phase. The public phase is when you can walk down the street asking people about bitcoin and a decent percentage of people say yes I have bitcoin, right now if you did that you'd be very lucky to find one person who has bitcoin. I just laugh every time I see an article or commenter on the internet talk about bitcoin being in a bubble, that's how you know they don't know anything about bitcoin. The only exception is if they are talking about a short term bubble that will pop and then find support and then hit new ATHs like we just had from May through July.