Charles Stross posted this thought experiment recently:

“As automation of mind-work bites, sooner or later we’re going to need to switch from a work-to-live-and-pay-taxes-on-income economy to a basic-income-and-work-to-add-luxuries economy. Otherwise we’re going to end up with a vast majority of the population who are immiserated and have nothing to lose from violent unrest, and whose immiseration means they can’t provide the level of consumer spending that supports the profits of the business...