Nanomachines?

[Nicklesbe]

Scoobes said:
If you want to use internal nanomachines then you'll need to make sure they have a significant biological component to overcome the immune response (or effectively make the immune system assume they're naturally meant to be there).

Basically What i said and still a good point. I think a lot of "fun" could be had with an indepth upgrade system as they work out the kinks in the nanomachine system. Also I don't know if he was talking about genetic diversity too much, just cultural diversity. I agree with your point completely tho Diversity is important