The Wankel was a major change in the ICE paradigm. Perhaps this “wave engine” is yet another. Lots of things to like about its performance characteristics !! But its a damn long way from production.......And I’m old... >PS
There are so many interesting technological developments going on out there, that you could spend all of your time reading about them, and still not catch up.
Some are going to change the world, while others are going to be good ideas that never went anywhere. It's good stuff for a lazy Saturday afternoon, though.