Good points, thanks for contributing your domain knowledge. So the issue seems to remain: fiber can be made in different ways to accommodate different signaling

Good points, thanks for contributing your domain knowledge. So the issue seems to remain: fiber can be made in different ways to accommodate different signaling technologies, and what we lay down into the ground and run through buildings today might not be what we want to use 5/10/15 years from now. Is there a potential way to economically mitigate that, and at the same time turn Internet access into a public utility so the bulk of the initial capital costs are somehow only paid once by the utility?