Universal Basic Income
In my view, this is not a well defined question since it isn't very clear what you mean by 'feasible':


If you mean 'are developed countries in principle able to pay for a UBI?', then the answer is trivially yes.
Perhaps you mean 'politically feasible'? Obviously, that depends on the political constraints on redistribution, attitudes towards 'handouts', etc. - though I'm not sure this is the appropriate forum to discuss such issues.
Perhaps you mean 'A Good Thing'? Well, that's not really what feasible means...