We love to debate. I can't be with someone who doesn't think or do anything challenging.
There
are defintiely times where the things he gets passionate about don't
necessarily interest me. He's really into astronomy, physics,
aeronautics, trains & automobiles (very pro Tesla) and...Star
Trek/Star Wars.

He's obsessed with all things NASA - went to space camp - we went to KSC to see the last shuttle launch.
So
there are times when he says things that for me are a bit of a bore. He
watches The Universe & considers Dr. Michia Kaku (sp) & Dr.
Neil Tyson DeGrasse to be some of his heroes.
But I respect his passion and the fact that he can speak intelligently to those subjects and hold serious debates with people who actually work in those fields.
I
can't be with someone who's happy to be ignorant or doesn't have a
passion for something. If he's not talking about the above, then he's
talking about his field (DJing). But we can also debate politics, etc.
He's a researcher, like myself. So we never have dull convos.