There are differences though. You’ve made a physics metaphor for a psychology metric, (arguably an educational psychology metric). But as far as we know, electron is elementary. g is far from elementary. Not elementary, not element, not atom, not molecule, not compound. Perhaps, a mixture. g could correspond to a mixture. It is statistically constructed out of human responses to a variety of tests. Regardless, equally but differently important is not just “what it is” but “what it’s for”. Whatever one’s interpretation of the nature and basis of g leads to “what it’s for”. Is it for educational performance estimation? Job performance estimation? Income attainment potential? Happiness? Is it a case of “all eggs in one basket?” What alternative equally powerful metrics are in use that g is compared to or against? Or is it the only game in town from and through which all things are measure to and against?

But as far as we know, electron is elementary. g is far from elementary. Not elementary, not element, not atom, not molecule, not compound.

Perhaps, a mixture. g could correspond to a mixture. It is statistically constructed out of human responses to a variety of tests.

Regardless, equally but differently important is not just “what it is” but “what it’s for”.

Whatever one’s interpretation of the nature and basis of g leads to “what it’s for”.

Is it for educational performance estimation? Job performance estimation? Income attainment potential? Happiness?

Is it a case of “all eggs in one basket?” What alternative equally powerful metrics are in use that g is compared to or against? Or is it the only game in town from and through which all things are measure to and against?

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