I Spent A Coin (And I Liked It) — How I Bought Lunch in Manhattan with Bitcoins
Bitcoin isn't a scam because it's "imaginary" (i.e. fiat) but because of how the currency is distributed: a proof-of-work system that is skewed heavily in favor of early adopters.There are a lot of good ideas in Bitcoin, but the truth is that its raison d'etre is to enrich early adopters-- the definition of a pyramid scheme. (It's not a Ponzi scheme; that has a technical definition and Bitcoin doesn't qualify.)