Judging from the number of decades it's taken for organisms that reproduce on the order of hourly/daily to develop that capacity, I wouldn't hold my breath. We

Judging from the number of decades it's taken for organisms that reproduce on the order of hourly/daily to develop that capacity, I wouldn't hold my breath. We haven't even evolved the ability to digest wood, after all. But, we are cyborgs. One could imagine a probiotic treatment to introduce plastic-digesting bacteria to our gut flora within a decade.