Brilliant article, you got my vote.
I just wanted to add, these aren't all strictly "currencies" either, they are versatile technologies, some unique and the only emerging in their field. Others will crush the competition, and victors will take the entire markets in many areas.
Blockchain is going to be implemented GLOBALLY (the chinese are about to start paying taxes with it) whether people like it or not.
And 100 fold opportunities are out there, in a ridiculous frequency.