Don’t forget that $1T of that total $4T is just spent on social security — this could potentially replace social security, so that number could go towards UBI instead
It means more than doubling the federal budget, which already exceeds tax revenue considerably. UBI of $1000/mo might be doable in Zimbabwe as long as you don’t care what 1000 Zimbabwe dollars actually buys you....
I’m not sold on UBI but it does sound possible