The plan as I understand it is to pack it tightly with TPUs with liquid cooling out to radiators and flying a tight cluster of these next to each other using high bandwidth laser links. That lets you balance the amount of thermal radiation you need to emit vs the amount of TPUs in a single satellite. Thus it’s not a DC in a single satellite but more like a rack and then a bundle of racks flying beside each other.
Or you know, just have tpus with liquid cooling in huge racks, with optical cables or whatever. We can put a shitton of them into a warehouse sized space, and we have basically infinite energy to power and cool it, with physical connection to the internet for ultra fast speeds!
(Sorry, the snark is not directed at you)