Google negative income tax and read the article...
Naz I think you are a little off though. the negative income tax is an implementation of a few possible implementations of a basic income system. Friedman liked it because it was better then normal welfair or the progressive tax we have. He wanted a flat tax. He did not particuly want the NIT, he wanted less welfair overhead and a flat tax.
If you do not have an income tax you can not use a negative income tax to implement a basic income.
It is all crazy talk though.
There seems to be quite a bit of a Bitcoin interest around here, with several articles about it already: [1 2 3 4 5 6 7]
I propose that links and generic Bitcoin comments should be posted here, instead of making a new discussion thread for each interesting article about the subject.