The way I see it, Robert De Niro's opinion carries as much weight as you want to give it. He's heard more widely than non-famous because he's, well, more famous. That's just the way it goes. Is it fair? Fair to whom? I don't see it as any reason for him to keep his opinions to himself.
As for expertise, it's not the only determiner of credibility. If you watch cable news, there are no end of experts and political pundits, and they're almost all hacks who will speak within the boundaries of their political tribe -- no automatic credibility at all. Someone like Robert De Niro is at least as credible as any of those fools, and they're spouting their opinions on TV 7 days a week.
As for Tom Steyer, his expertise on climate change is no more than what Joe or Jane Blow might be able to achieve with a little interest and effort. Steyer is repeating, with some accuracy thankfully, what real experts in climate science have reached consensus on. But Steyer is not super famous like De Niro, so he wouldn't likely reach such a broad audience.
reply
share