Out of Bounds
Follies With Tulips & Bitcoins
What this chart indicates is that while technology has advanced greatly over the course of the past 400 years, human psychology has remained the same. Some observers think the rally around the crypto currency Bitcoin might replace Tulip Mania as a reference for a badly overinflated asset bubble prone to burst at any moment.
Then again, there already has been deflation from the peak of a little more than 19,900 to 17,600 dollars per Bitcoin. But nobody knows if the puncture will let the balloon slowly deflate or it will rip it apart, crash landing the Bitcoin.

Description
This chart shows a comparison of price developments during the tulip mania in 1637 and the current bitcoin bonanza of 2017