Why SpaceX's huge $2.5 trillion value depends on computers in space

SpaceX is priced at $2.5 trillion on an idea for giant AI computers in space, MarketWatch reported Sept. 28. The logic: endless sunshine for power and space's freezing emptiness for cooling, like free electricity and air-conditioning, would help Earth centers straining for both. Nothing is built yet. My view: the risk is pulling it off.