More possibilities: - Govt's try to crack down on BTC. The usual asperger reaction "haha, it's mathematically unbreakable" is followed by a tug-of-war and prob

More possibilities: - Govt's try to crack down on BTC. The usual asperger reaction "haha, it's mathematically unbreakable" is followed by a tug-of-war and probably ends with taxes levied on exchanges and merchants. - BTC become a speculator's haven like penny stocks, the endless boom/bust cycles driving out merchants (except for drugs) and consumers - The protocol weaknesses overwhelm BTC (e.g. it takes hours for any transaction to clear) - scaling P2P is goddamn hard.