That being said, government action is a huge risk factor. It will show a lot about our government if they use threats of violence (i.e. make a law) against us for trading nothing but strings of numbers among our computers.
it's pretty absurd that people keep making statements like this about how "it's just a string of numbers" or "there is no law against math." If it were just a string of numbers, it wouldn't be trading for $26/USD per BTC. It is meant to be a p2p currency that exists as a unit of trade, and none of us would care about it if it actually was just a string of numbers.
To put it another way, isn't counterfeiting bills just printing pretty pictures on a piece of paper? Why is there a law against that? Isn't software piracy just trading strings of numbers over the internet as well?