Eventually, a grumpy old man* will show up and mention teletype and time-sharing. Someone else will incorrect him saying cloud computing is different. I'd love to hear Peter Norvig and Bill Gates talk it over.
It's still nothing like today. I could connect to the cluster with my phone in a gas station bathroom if I wanted to. Imagine telling people from the 1970s the sheer amount of computational power I can trivially call up today over the course of a bowel movement on the side of the road.
