This. Back in Janurary a client of mine and I had a few meetings. He wanted their company phones to get a push notification every time someone filled out a form on his website. But during our conversation he talked about some friends of his who were into bit coin mining and said we should go into a venture. And I said no. I think I mined 4 bit coins through a pool once many years ago, mainly because I've always been fascinated by various distributed computing things over the past decade and was interested in seeing what they had done. But it was clear to me it was going no where, especially when I read about the ASICS and then all the shenanigans about those a couple years go.
Well when I delivered the solution to the push notification thing two weeks ago I asked him what he though about bit coins now. Apparently his buddies lost nearly everything, something like over a year's worth of coins, when Mt. Gox closed down. Not sure if he ever went in on a new rig with his buddies or not, but he knows I've done fairly well for myself owning and selling a couple of businesses in my young life. He's the the type where he's looking for the next billion dollar idea and will never get there. I look for ideas and projects that have a solid idea with realistic expectations.