is it a paradox? how unlikely is it that there's a plastic substance out there that can be quickly dissolved to bio-degradable substances but only using a relat

is it a paradox? how unlikely is it that there's a plastic substance out there that can be quickly dissolved to bio-degradable substances but only using a relatively cheap and non-toxic solvent not present in most use cases for plastic? that's not a paradox, it's an engineering problem.