The 2013 turn to "flat" design felt quite fresh to me, and I haven't really gotten tired of it yet.

Man, I have. I liked it at first, but I’m so ready.

The processing power wasn’t there yet in 2007 for the level of refraction and skeuomorphism that makes this look work on a system-wide level. In Vista and 7 Aero was just fancy transparency with some blurring and flares. But this design language Apple is showing off is beautiful. I hope others copy it (which will probably happen, since everything in tech is everyone copying everyone else).

(That said, I would probably also take a return to the 9x/NT4/Windows 2000 2.5D grey UI over the flat stuff at this point, so maybe I’m not a good source of opinion. 😅)