It is an idea I am well aware of, but one that does have some flaws. Human psychology makes a sedentary life utterly miserable and I think that suicide rates will skyrocket.
Not to mention the need for a centralised and government owned economy in order to fund a UBI...
It is an idea I am not opposed to in principle, but one that I think is practically implausible.
I agree completely, I discuss in detail some reasons why it is not a viable solution.