Earlier quoted context omitted.
It's not as if we live in a purely capitalistic system. In a pure capitalism, there would be no taxes. Yet here we are living in a system where the government takes money from you, specially if you're really rich. It's not as though any idea that's at odds with capitalism will require "an alternative system". There's not gonna be any change to the system that requires a new theory of economics. Suppose bitcoins are a…
I agree that we don't live in a purely capitalist system and in fact, I don't like to call it that way as it undermines its meaning. In a truly capitalist system we wouldn't have this discussion at all since there'd be no federal reserve and currencies would be free to compete against each others. In my opinion, Bitcoin (and the gold standard in some ways) is as close to capitalism as it gets.
No you wouldn't. All of those things are the exact opposite of capitalism, since they prevent voluntary association and threaten body, liberty and property.