And this reply is used a lot too, despite being just as shaky.

As a wise man once said, they laughed at Galileo, they laughed at Einstein... and they laughed at Bozo the Clown.

> As a wise man once said, they laughed at Galileo, they laughed at Einstein... and they laughed at Bozo the Clown.

Exactly, "they" can't tell the difference between Bozo the Clown and Einstein. It's very hard to predict what ideas or technologies will be adopted in the future. I don't think it's wise to quickly dismiss one that's already progressed this far (the DHS isn't laughing).

Most self-proclaimed "game changing" technologies don't end up changing anything.

If a technology could self-proclaim anything then that would be pretty game changing :). Your point is well taken though (most technologies don't change anything). However I think Bitcoin _has_ already changed more than most.