This assumes that the costs scale with population size. I would naively assume that it is mostly fixed costs (developing the software, setting up the central servers).
Likely the provider of e-signatures would have to assume some sort of legal liability, hence costs scaling. Maybe even exponentially as they become a bigger and bigger target. But the intelligence and foresight of even the best legal team in the world plateaus.
This assumes that the costs scale with population size. I would naively assume that it is mostly fixed costs (developing the software, setting up the central servers).
Likely the provider of e-signatures would have to assume some sort of legal liability, hence costs scaling. Maybe even exponentially as they become a bigger and bigger target. But the intelligence and foresight of even the best legal team in the world plateaus.