Proposition: “Nothing can be known or measured with any certainty.”
Perhaps.
However, there is a mode of human action known as performance; one can perform a measurement or a 'knowing' of something without asserting its absolute, finite, veracity - the act of performance itself gives rise to knowledge, or some data, however uncertain the terms of that knowledge may be.
This is why I am interested in performance, masks, costumes, and ritual - there is a consensual suspension of disbelief that allows for the creation of useful knowledge, if not objective facts.
The suspension of disbelief is temporal, and temporary - it creates something, and then the suspension itself can be suspended while the created knowledge lives on.
The product of this performance has value. It has usefulness, practical (and impractical) use being another category of performance or action.
One possible analog of performance in speech is the common-or-garden utterance (not to be confused with the ‘performative utterance’): any utterance can have value in the absence of truth or certainty. More on that later.
And finally this: I am not interested in the above formulation as a recipe for post-modern moral relativism or ‘alternative facts’. Just saying, is all.
