This begs the question - is there a maximum "star cluster" size, beyond which a post-meat society on starship(s) would be unable to obtain more energy? In esse

This begs the question - is there a maximum "star cluster" size, beyond which a post-meat society on starship(s) would be unable to obtain more energy? In essence, given some function that takes in: - a graph of stars/blackholes (energy sources), with: - the distances between each energy source - the expected remaining lifetime of the source - (optionally) the probable locations of new sources, and their expected time to maturity and: - a set of starships, with: - the maximum material lifetime of the starship (e.g. of solar panels) - the percentage of material renewal possible at each node - the energy consumption of the starship is there a finite longest path, that is meaningfully smaller than the universe? And what is the probability that we will encounter a life-bearing planet on this path, which we will have to mine to oblivion to enable the renewal of our starship(s) for the survival of our own species?