Considering this thread is called "Random talk," I'd say most anything qualifies as on-topic.
I didn't say anything about it being off-topic, I just said that Deloria's story was interesting. Definitely more interesting than a mutant Asian kid who can see perfectly clearly in the dark. I mean, anomalies in the human body that could potentially lead to scientific advancement? Who cares about THAT?
Right, but instead of talking about the Asian kid and making the conversation more interesting, you're lecturing everyone else on not talking about it.

We can talk about whatever we want to talk about here - if you don't find a topic compelling, come up with something new.
Imported Cadbury Dairy-Milk bar and a bottle of Irn-Bru? Someone pinch me.
Bt
And yet, are there Tim Tams?