Efficient waste management is probably one of the hardest classification and allocation problems (the domain of data is "pretty much everything and everyone").

Efficient waste management is probably one of the hardest classification and allocation problems (the domain of data is "pretty much everything and everyone"). Every day we throw away tons of useful items and materials, because it is not economical to find an appropriate home for them. I wonder if the future "landfill" could be a robotic factory that attempts to solve this problem.