Thanks! With "gravity keeps us on the ground" I was trying to point out that the word "gravity" to most folks is the same thing as "the thing that keeps us on

Thanks! With "gravity keeps us on the ground" I was trying to point out that the word "gravity" to most folks is the same thing as "the thing that keeps us on the ground", it's just a language symbol/shorthand for that concept, so the statement would reduce to A=A, and isn't a meaningful "fact".