I laugh because this info is coming from a former CEO.
He retired. And he did well for himself.
By your argument, anyone who retires after a long career is suddenly an idiot who knows nothing. That's like saying that one day when you retire from flipping burgers, that you don't know anything about the burger flipping process anymore.
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Says the guy who doesn't want the most profitable company in the world to build a competing product.
Again missing the point. He's retired... Do you really think he's worried about competition? I seriously doubt it. He'd be more worried about someone fishing near his favorite fishing hole.