We subscribe to a belief that the past is more certain than the future.  The evidence for this is rather scant . . .

Nobody owns history. Those entities that seem to persist over historical time must be limited to that which we tell communally.  The fact that France invaded Russia is not a fact on par with the fact that two chemicals, treated thus and so-ly, will change thus and thusly.

To help us differentiate here, we need to interrogate the way measurement functions within a narrative domain. How is consensus arrived at?