"There's this Indian fellow who worked out a cycle like the idea of stone-age, bronze-age, only he did it on an Indian one. The cycle goes from nothing until now and 20th century and then on and right around the cycle until the people are really grooving and then just sinks back into ignorance until it gets back into the beginning again. So the 20th century is a fraction of that cycle, and how many of those cycles has it done yet? It's done as many as you think and all these times it's been through exactly the same things, and it'll be this again."

Source: Source: www.fifthestate.org