[diN0bot]

since you keep saying that you are not a native speaker, consider believing the interpretations native speakers share. stuff simply means what it means. you can believe it or not.

more generally, when someone says something you find incredulous, consider processing that internally, and then decide if saying "huh, now i know" is not a better reaction to "no way, maybe you're wrong."

[lostcolony]

And you raised your objection, and got an explanation. That should have satisfied your curiosity.

Doubling down to say "This sounds so far out", and continuing to argue, doesn't really indicate curiosity.