[beat]

Or someone else will hurt them.

I could get into my house faster at night if I didn't go through the trouble of locking and unlocking, too. Every security measure has overhead. "Massive gains in economic efficiency"? What's the tradeoff for this? If it's reduced security, then most people will say, "No thank you".

[jwesley]

People should have the freedom to make those security choices for themselves. People who are scared by the security issues of Bitcoin can avoid it, or only use it when the efficiency benefits are advantageous to them.