Just finished reading "Ubik", I found it partly amusing and also prescient that to get thru a door or make coffee required putting a nickel in the slot. Practic

Just finished reading "Ubik", I found it partly amusing and also prescient that to get thru a door or make coffee required putting a nickel in the slot. Practically everything required a small payment in order to use it. We seem to be almost there: cars, ovens, tv's, dishwashers...the list goes on.