To me, "a probably $200-300B company" sounds absurd. You're describing one of the possible outcomes of a massive range that goes from $0, where they get over their skis on financial commitments to well beyond $2T, where their 10x YoY growth continues for a few more years. A $200-300B outcome is possible, but certainly not probable. (And in fact, for us HN commenters, the most probable outcome should be assumed to be roughly what the market will bear.)