Z-paper 1122 by Herb Zinser provides some data about Nature’s SYMBOL MACHINE comprised of nouns,verbs, concepts, math equations, flowcharts, etc. The ideas found in math and science textbooks are part of the SYMBOL MACHINE.
Using Galileo’s suggestions of ” 2 CHIEF WORLD SYSTEMS” we now perceive Sartre existentialism as partitioned into 2 or more data spaces……. the 2 CHIEF existential entities
1) physical reality of objects: concrete highways, iron automobiles, cellulose trees, humanoids, etc.
2) The world of symbols, concepts, process control system flowcharts, biochemistry diagrams, math and physics equations, etc.
Thus we understand Charles Dickens ” TALE of 2 Cities”.