Is that really that hard to understand? Somebody sees a fireball falling from the sky. They investigate it, and it turns out to be a very strong material, great for making weapons with. It wasn’t as obvious to the British in 19th century, because iron is most commonly mined everywhere. Since there was no iron mining back when they first started using it, they had no confusion realizing it came from the sky.
I said this in another comment, but this AMA should not be about reddit at all. In fact, we only bring up reddit to the effect of asking how he felt about his pictures. If we make this a regular AMA about his regular life, it would show lemmy to be a viable alternative to reddit. He doesn't know anything about lemmy other than that it's an alternative to reddit where people control the platform.
He’s a good candidate too, but to me, John Oliver has come to be associated with Reddit revolts in the media, because he was flooding the front page for a while. Even major news outlets wrote about it. If he does an ama here, it would symbolically show that those people have moved on to Lemmy.
I think it would be a definite boost to the fediverse, because a major talking point I see in reddit discussions is that there is no viable alternative to reddit, so people are going to stay no matter what. This event would put a big spotlight on lemmy, and if it goes well, will result in a lot of regular users from reddit.