"Why do we care..." It's not about him especially. What are all your possible sources of other opinions to consider? * Informed, or at least intelligent, bia

"Why do we care..." It's not about him especially. What are all your possible sources of other opinions to consider? * Informed, or at least intelligent, biased stake holders. (People with money or status or even merely true simple academic interest in it) * Uninformed or unintelligent biased stake holders. (Maybe politicians or religious) * Informed or at least intelligent non stake holders. (Kaku) * Uninformed or unintelligent non stake holders. (Me) All the other 3 groups are blasting out their opinions like they actually matter at all times, and that matters because through one mechanism or another, be it voting or market, we make policy by simple popularity. I would say that is why the opinion of anyone in that group matters. Not because it's him by name, but just anyone not in the other 3 groups.