Yes. Previously this role was played by carbon nanotubes. Even supposing we work out a way to manufacture graphene cheaply, it seems to me that there are lots

Yes. Previously this role was played by carbon nanotubes. Even supposing we work out a way to manufacture graphene cheaply, it seems to me that there are lots of technical solutions to problems out there which remain undeveloped for lack of a viable financial model (or simply bad luck I suppose).