Tracking the 2014 Bitcoin Bubble - First Doubling

I am tracking the number of days it takes the bitcoin price to double. This is a proven indicator for determining when a bubble is peaking. There is academic research that quantifies the super-exponential growth during an asset price bubble, but the math is much simpler when counting days-to-double. Historically, the bitcoin price peaks when prices are on a pace to double in about a week.

The first doubling leading up to the next bubble took 51 days, which is the difference between $340 on April 10 and $680 on May 31.

I will be watching for . . .

Second doubling - $1360 (perhaps July)
Third doubling - $2720 (perhaps July)
Fourth doubling - $5440 (I think the late July peak will be near this value)
Fifth doubling - $10880 (probably will not happen unless the peak is in the fall)