> There are of course issues with this system. For instance what do you do about immigration?
I am guessing that it will need to be implemented globally or at least regionally (e.g North-America, Europe, etc). Every country according to their possibilities.
I'm curious why you think this would be necessary. If UBI was for citizens only and it was funded by consumption, visitors would end up paying into it and then would have to petition for reimbursement (much like I have to do when I visit countries with VAT in Europe). Many folks won't bother because the amounts are small.
As far as immigration, they'd need a job to survive here much like they do today and only once they achieve citizenship would they be eligible for UBI. I wouldn't see this changing much from today.
I am guessing that it will need to be implemented globally or at least regionally (e.g North-America, Europe, etc). Every country according to their possibilities.