$200 per gram frome GARBAGE
Clean up the oceans and beaches, piles of old tires and land fills for PROFIT is now doable. I just composted a bag of banana skins and orange peels worth $2000.
Read this and know that the world will be alright and technology can solve the problems of technology.
https://newatlas.com/materials/high-value-flash-graphene-cheap-trash/
See how its is done