> I think we are talking about two different things. The UBI I'm talking about won't allow you to have an enormous mansion, maybe just enough to avoid starving.

We are indeed talking about different things with UBI here, but I'm asserting that the usual model of it can't be sustained without robots doing the economic production.

If the goal specifically is simply "nobody starves", the governments can absolutely organise food rations like this, food stamps exist.

> If everyone in the US gets a UBI of the same amount, will people move somewhere rent is low?

More likely, the rent goes up by whatever the UBI is. And I'm saying this as a landlord, I don't think it would be a good idea to create yet another system that just transfers wealth to people like me who happen to be property owners, it's already really lucrative even without that.