Illustration by Tag Hartman-Simkins / Futurism. Source: Brendan Smialowski / AFP via Getty Images If Elon Musk ever cuts the ribbon on his massive chip factory “Terafab,” it could be among the largest buildings on Earth — and one of the most expensive. Terafab, announced in a painfully awkward conference over the weekend, is a joint semiconductor venture between Musk’s SpaceX, Tesla, and xAI companies. Should it ever come to be — we’re skeptical — the fact