I think he looked at the energy work value as stable, as you need a fixed amount of Jaule to boil 1 liter of water from 20C.
In a way, he foresaw an energy based value system. maybe 'predict' bitcoin was a stretch
"In this cosmically uniform, common energy-value system for all humanity, costing will be expressed in kilowatt-hours, watt-hours, and watt-seconds of work. Kilowatt-hours will become the prime criteria of costing the production of the complex of metabolic involvements per each function or item. These uniform energy valuations will replace all the world’s wildly intervarying,...
"Bush seems to have said little in his published work about the antecedents of his Memex or of his microfilm rapid selector" - Buckland wrote a nice article summing it up: http://people.ischool.berkeley.edu/~buckland/goldbush.html
Shameless plug: Goldberg's life story and his search/pattern detection machine was the main inspiration to create Revealer - https://revealer.cc