I don’t know what they need so many GPUs for. There’s 16 displays inside, and the sphere itself has fewer pixels than even 1 of the internal displays. You could probably run the sphere off a laptop if you aren’t trying to do anything fancy.
Maybe they plan on doing crazy live simulations on it or something. I can’t imagine what kind of displayed image would actually use all 150 of them. Nvidia A6000 cards are damn powerful.