Can confirm this, the amount of genuine attention I received while losing my mind talking about Warhammer 40k with dates is unbelievable!

Of course, you should probe a bit beforehand. I got lucky and my dates were pretty much all into fantasy stuff, so 40k wasn’t a huge leap, but there was no interest expressed in 40k other than specifically to hear me talk about it.

Edit: I know this is a meme subject, but I’m dead serious about it.