Are you seriously trying to make the argument that their economy will absorb this with no effect on the value of their currency?
Why that? Nobody's talking about abolishing taxes. Note also that the basic income would replace many other forms of social subsidies that already exist and have harmful side effects.
Ultimately, it's not about money but about productivity. If the economy is productive enough to give everyone a minimal standard of living as well as comforts and luxuries for those who earn them, it doesn't really matter how said minimal standard of living is "funded".
And there is little doubt that the economies of developed countries are that productive for a reasonable minimal standard.
http://en.wikipedia.org/wiki/2013_United_States_federal_budg...
So funding a $20k/person basic income would correspond to about 50% tax? Actually I think this is an overestimate, since the declared incomes do not cover social security and corporate taxes.
Through what mechanism exactly? Please also explain why this hasn't happened with other, existing forms of social subsidies.
It seems like it is your understanding of money that is laughably over-simplified.