On the other hand remember that the markets can be irrational longer then you can stay solvent and that this irrationality happens in both ways.
I tend to follow the advice from Soros - "When I see a bubble forming I rush in to buy, adding fuel to the fire. That is not irrational."
How is a 30 degree upward slope for the past 1.25 years irrational?
The bubble ensues next and it curves up higher slope to rocket to ATHs after surpassing the cup & handle at $800ish.
We may get some resistance at $800 and so maybe not until next year for the ATHs. I am nearly certain we will push to high $700s before Xmas.
Remember Bitcoin is another way for wealthy Chinese to get their money out of their debt crisis and country. A liquid diversification.
See any familiarity with the above chart and the typical one for new investments:
