I've believed for a while now that GPUs are eventually going to get so big they'd need to be external to satisfy power and cooling requirements, and this is just more proof of that IMO.

There's a meme image somewhere out there of a GPU crudely photoshopped to look like a split-type AC condenser unit, i.e the kind you mount outside your house. It's pretty much how I picture GPUs will end up if things keep going the way they are.