<<how is that a useful comparison, considering, as you say, that aapl is as far from gtcb as possible>>
Maybe he was responding to your argument "that the intrinsic worth of a stock, is only rationally valued by the discounted worth of future cash flows" That means, I guess, that the discounted worth of AAPL's future cash flows decreased by 70 billion or so as the stock declined by $80 and then recovered $48 billion or so. And that today, it increased $2.5 billion or so. I guess that can be explained by changes in the discount rate.