Subjective=meaningless?

So, that's a deliberately provocative title (which I was assured by a friend in social marketing was a good way to attract attention) … but it's vaguely accurate.

Does subjective=meaningless?

Clearly not; how I experience pain is meaningful to me. And my assessments of my own pain may be reproducible (I'll say the same if you ask me again). And discriminatory (I'll say my pain is different …