sense data, n.Definitions

Sense data (n.) are, ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠like whatever physics counts and measures, unknown at root and probably unknowable.

Sense data (n.) force ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠'equal' to become intransitive: A looks equal to B, B to C, but A not to C.

Sense data (n.) 'are ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠private to oneself': a metaphysical statement all the more misleading because it looks like an experiential one, so its author thinks he utters a scientific truth.