You are implying that a conceptual infinity is unverifiable, but does not mean it is inconceivable, right? Which is pretty much an equivocal but uncertain proposition inasfar as muting the question as to whether, there IS infinity, or not, UNTIL which time that it can be verified.
Let’s say, the looking glass of the future discloses a technologically advanced age, where the technical requirements are far in excess of anything which could possibly be imagined today, such as .99999 to the 1000th power specified in some kind of ultra tech , time travel machine, requiring the use of material made up of ultra stress potential, to withstand the tremendous forces incurred in time travel.
Here it would be within 1/0.99999999999999999999999999999999999999999999999999 of differential of a functional variable, and possibly with no end in sight. Does this not bring the idea of a continuation of this difference between the sum of the parts to be as split between 1 and and 1-.99999999999999999999999999999999999999999999999999?
Until that future time, is it safe to say that the answer to infinity as an open system is closed?
The answer could be yes, only if the answer is based on a probable set. Is there any legitimacy in any case, one way or the other, to qualify a certainty before that time?