I often bumped into paradoxes while dealing with infinity, when describing a model for the multiverse theory. So I just denied the existence of infinity and accepted that the number of universes is not infinite.

Now, my question is, just how many ? Thus, I devised an exponential function, that would calculate the number. f(T)=N^T/PT

We do hypothesize that, a universe is born at every quantum indeterminacy. I thus came up with a number N that would represent the number of such indeterminacies per Planck Time.

We know Planck's Time is 5.39124(27) × 10^-44 seconds (We'll call this constant PT) , and we also know the age of the Universe (13,7 billion years) (T).

Using Google's calculator, I found out that 13,7 billion years equals 4,32329886 × 10^17 seconds.

Now, using the exponential formula f(T)=N^T/PT, we would be able to compute the number of universes at any given time.