Why are we not replacing our bones and skin and muscles with graphene and carbon nanotubes?

WE MUST REPLACE BUILDINGS CARBON NANO-DIAMOND-TUBE VENTILATION DUCTS

No longer diamonds, nanotubes are now the hardest metal

I bet this will be one of those things that someone figures out or discovers how to mass produce out of the blue, and it revolutionizes everything.

Lol no. We'll probably need a completely different approach to making materials than what we have right now. You can't just form nanotubes and graphene into whatever desired shape you want and if one 'glues' nanotubes/ graphene together one loses a great deal of strength

Aren't carbon nano-tubes poisonous in a human body? Like the super version of asbestos and fiberglass?

Because human organism is extremely complex and you'd have to make the nanotubes somehow compatible with our bodies
as you probably know your body is constantly repairing bones, so you'd need to get rid of that as the carbon tubes would interfere
but if any unknown factor damages the tubes and your bone repair system is off you're essentialy dead
this is an oversimplification and you can see it getting extremely complicated very quickly, it would need absolutely insane amount of research and funding, so theres your answer

Underrated post

but Wolverine has like titanium bones or something, this must be possible we only need to think outside the box

You dont want perfectly rigid bones. Your bones are supposed to flex, and at a certain point, break because if they didnt you would fuck up the surrounding flesh and muscles beyond repair. Not to mention the major role your bones and bone marrow play in your circulatory and immune systems that graphene couldn’t replicate. Toss in the fact that REPLACING GOD DAMNED BONES is a needless traumatic procedure that would likely do more harm than good in situations that arent already life threatening.

>2 sheets of graphene stopped a bullet
No. No they didnt. Graphene, by definition, is about one molecule thick. Its not meant to stop bullets and thats not even a potential application that materials engineers are looking into.
>but maybe it was thicker sheets of graphene
Then it was either A) graphite, which is nothing new or revolutionary, or B) closer to many thousands of sheets of graphene, because 2 atoms thick wont fucking cut it.

tl;dr: OP is a brainlet of the highest caliber, and we need to introduce predatory animals into cities to kill off some of the stupid people. This is getting out of hand.

Graphene is probably carcinogenic