Maybe just a little worried that not everything is in the image of 2011:
Honestly, 2011 is a vague guide, not a rule-book. There was a fundamental difference right at the start. In 2011 when the bubble began the base was just under $1, so increased over 30x to peak. But the fall was only to $10, still 10x base. So it had a long way to fall, and it did for 5 months.
In contrast, 2013 dropped straightaway to barely 3.5x the base of $13-$14. So a low was quickly tested. 2011 was the first bubble so a lot of people did not know what to expect. In 2013, everyone was looking at this prior event and obviously many people cashed out fast. If 2013 crashed only to $135 and bounced around that for a few months then the argument that the bottom had not been tested would be very sound. But this is not what happened.
Honestly, you can not compare the numbers and you're right that there are Fundamental difference.
I fear a psychology point 4 from 2011.
When the price rebounded just because the market was quickly oversold and everyone thought "it was the bottom!. Then, it was lower and several months later.
But again, I'm not saying that Bitcoin will be for 50-30, just I know that
confirmation of bottom will be up next fall (or correction).
Either will be higher than 65, or it will double bottom, or it will be less.
Earlier this we can not know.
EDIT: It's not just about Bitcoin from2011, but such a "bounce before the completion of correction" is very common.