From a basic physics research perspective (as opposed to an engineering process development for production perspective), are we even sure graphene semiconductors have that much potential headroom for improvement beyond the best possible silicon ones? I'm not convinced it buys us more than a couple of process nodes. I mean, we're already making transistors so small you can damn near count the individual atoms in them today. Is making them out of atoms with one less valence level gonna be enough for a 10x, 100x, or 1000x improvement, even in the long run?