Comment by buffalobuffalo

Blockchain only has 2 legitimate uses (from an economic standpoint) as far as I can tell.

1) Bitcoin figured out how to create artificial scarcity, and got enough buy-in that the scarcity actually became valuable.

2)Some privacy coins serve an actual economic niche for illegal activity.

Then there's a long list of snake oil uses, and competition with payment providers doesn't even crack the top 20 of those. Modern day tulip mania.