I can only speak for sure about what he's said about physics.
The fundamental problem with talking about highly technical things (like theories of everything) to a popular audience is that it's totally one-sided: he could spout nonsense and none of his listeners would have the slightest chance of noticing, as long as it sounded complicated enough. It's just like how you could talk somebody tech illiterate into installing malware.
I don't know about his other opinions, but for nontechnical topics, the audience can check for themselves whether the conclusions make sense. So if you think they do, it's probably fine.
The fundamental problem with talking about highly technical things (like theories of everything) to a popular audience is that it's totally one-sided: he could spout nonsense and none of his listeners would have the slightest chance of noticing, as long as it sounded complicated enough. It's just like how you could talk somebody tech illiterate into installing malware.
I don't know about his other opinions, but for nontechnical topics, the audience can check for themselves whether the conclusions make sense. So if you think they do, it's probably fine.