[acdha]

That has no citations and is pretty ranty. Given the timing, it seems more likely that all of the people in the industry working on similar problems identified the same problems with the previous generation APIs and since they all work with the same major developers they're going to be coming up with similar solutions.

[chamwislo]

At the time, Apple was using AMD GPUs in their macbooks.

[acdha]

Also their desktops. My point was just that they’re similar but not the same and everything in that space was evolving in the same directions for the same reasons. If Apple was ripping it off I’d expect them to be more similar and further apart in time.