I think the bit about cash versus bitcoin in the beginning leaves out an important detail about bitcoin: it doesn't require proximity, which can fraught with ri

I think the bit about cash versus bitcoin in the beginning leaves out an important detail about bitcoin: it doesn't require proximity, which can fraught with risk. In the situation of buying drugs, for example, Silk Road and its ancestors provide safety because people don't have to go to some shady house to buy their drugs. I agree that bitcoins aren't as convenient as cash, and as such I agree with the author that cash is here to stay. But bitcoins fill a niche nothing else can fill right now, and as such, bitcoins are here to stay too.