on the move — Adjective: 1. Changing location; in motion https://en.wiktionary.org/wiki/on_the_move
on the go — Prepositional phrase: 1. (idiomatic) Actively traveling; busy; moving often., 2. In progress; having started. https://en.wiktionary.org/wiki/on_the_go
What is the difference in the meaning of ‘move’ and ‘go’ that would allow you to compose the difference in ‘on the move’ and ‘on the go’ from it?
Keywords from the wiktionary definitions, I think, are:
After work as everyone heads home, on the roads everyone’s on the move.
“You’re on the go today! I haven’t seen you sit down all morning!”
I don’t think there is anything in the meaning of ‘go’ and ‘move’ that would allow you to say that’s the difference between ‘on the go’ and ‘on the move.’
Despite that, I’m a believer in the composition of the meaning of a sentence from the words in it.
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