What if the Universe has no end?

Wow, that's a really good article. I will have to read it all over again. A few times, probably. Makes me feel kind of dumb, as a matter of fact. Like a blind person and somebody is trying to explain what colors are. Or like a two-dimensional being, and somebody is trying to tell me that there's a third dimension, an "up and down direction" that I have never seen. Or that time and gravity are related somehow? Well, I'd say we are all not as smart as we think we are, I guess. I wouldn't mind be a bit smarter, though. And even some more then. And smarter again. Is there an end to that?