Pioneers

This is the age of people that pioneer. We push the boundaries, we have more opportunities, we have more growth in most facets of our lives.
Sorry, but I'm going to call a bluff on this one.
When was the latest 'new thought'. All our our thinking is based on things that were decided years ago. The belief that we actually exist, when was the last time that you questioned that one, was probably proved by Descartes in 1637 (cogito ergo sum) and it hasn't been seriously questioned since then. We don't actually question any of the fundamental things, only the nitpicky little things that probably fall under the topic of Dogma, and then we claim that we are high level thinkers.

I would say that the closest that we get is accepting new innovations. Even then, will we accept things that are developed by people our own age? How many mid-50 year olds do you know that regularly use computers for anything more than sending emails (if that). Bill Gates is currently 54.
All of our thoughts are just re-hashes of what has already been said; the alternative medicine movement? Chinese or tribal herbal medicines, been around roughly since herbs. New age stuff? Celtic or Scandinavian religion with some eastern occultism, been around since roughly Celts, Scandinavians and East Asians.
We can't do anything that hasn't already been done for us.
Look at art; the stuff that people say is the biggest shift is either monkeys throwing paint at a wall, or dead animals. Correct me if I'm wrong, but don't a lot of people believe that cave paintings fulfil both of these criteria. And what performance art? Vaudeville acting often with a few less clothes on.
Look at music; modern pop music is just a rehash of last years pop music, which was a rehash of last years pop music, which was a rehash of last years pop music, and so it goes. Styles may change slightly with the addition of a new innovation, but then it's first tried on a rehash of 80's and 90's music and then it spreads to last years music. You only have to listen to a bit of modern metal to realise how much of it was almost written by either Pink Floyd or Metallica 30 or 40 years ago.
In technology, most of the thinking was done by people early last century - Science Fiction writers. We look at that now and think, "Yeah that could be feasible, and so we'll try it out" when the original thought came not so much from an idea of this would be cool, but from an idea of this should work if that can happen. Usually that happened roughly 10 years later and we didn't bother to do anything about it

Look at our moral compass (which as a generation is so screwed up it's given up pointing in any direction let alone north). Even that isn't new. We're just asking for it all to be legal now. Most of it was seen in Ancient Greece nigh on 2500 years ago.

As a generation, we've regressed. It's not so much that we aren't able to do new things, it's more that we don't want to. Without a few clinically insane people blurting out some completely new thing, there will be no paradigm shifts in our thinking because we don't want to have them.

The only new thought that we've had is that sitting on a small dark box that we call a room can give us the same social experience as going out and actually talking to people. And I'll call bluff on that one too.