I know I came in late (the Time article quoting a MT of the original Tweet in this string didn’t hit my Apple News until this morning), but:

What astonishes me, is the Cats realize that they are watching at a some sort of mirror and at an image of themselves.

— Коshko (@unkoshko) December 10, 2019

That is the mirror test though, a dog for example would see the phone as a phone with a cat/human on it, the cats understand that the “reflection” is actually their owner behind them irl.

— 🎄 (@app_lejuice) December 11, 2019

I think it’s strong evidence for what I’ve believed for the vast majority of my life–that cats are THE most intelligent mammal to spend the majority of their lives on all fours!

— Merry Chrysimas [no, Karen is my SISTER!] (@chrysicat) December 15, 2019

Also, incidentally, that their world is nearly as reliant on *visual input* as a human’s is, since the filter that’s throwing them doesn’t alter scent, sound or touch!

— Merry Chrysimas [no, Karen is my SISTER!] (@chrysicat) December 15, 2019