Before that, people had a wall and you could go there and read what they wrote and poke them ... remember poking?
They do seem rather good at buying good product companies or copying ideas, which could serve them well in the metaverse-space (ugh...), once it's established.
Also keep in mind Apple has been doing a LOT of prep work for AR. We just don’t notice it but each iPhone comes with a full advanced AR sensor suite, capable of super imposing objects into our field of view. The only missing piece is the physical strapping of the iphone to one’s head, but if you did that the iPhone is capable of delivering Hololens-like promised experiences.
PyTorch is based on Caffe which was created by Yangqing Jia at UC Berkeley.
You can argue (and I'd agree) Facebook has talent for cherry-picking the best parts of innovative projects. But cherry-picking in and of itself doesn't constitute innovation.