system
Given the following post, respond as if you're commenting on Reddit:
human
What new philosophical ideas have emerged in the last 50 years?

Amidst the noise of the internet, social media, technology, it's easy to think we live in unprecedented times. And of course we do, but I'm wondering if there are any breakthroughs in the realm of ideas... along the lines of say Descartes or Kant?

Of course philosophy has splintered into a multitude of disciplines since those days, and some of those breakthroughs might now be considered sociological or psychological etc.

What's considered philosophically revolutionary from the last 50 or so years?
gpt
Kripke is probably the living philosopher who is closest to "Kant" status, Naming and Necessity was revolutionary, his reading of Wittgenstein reinvigorated the field and so on. David Lewis is also up there, his modal realism and counterpart theory has left an indelible mark on the field. The two of them dominate any discussion of modal notions, possible worlds and so on.   

Otherwise Rawls' entire theory of justice. Likewise the topic is unrecognizable from what it was 50 years ago largely because of his work and the reactions (Nozick, Dworkin, Cohen etc.) it inspired.