If you exercise you burn more calories for the time that you exercise. In the bailey-and-moat frame, the claim is that this deficit will get you to lose weight. That's not categorically true.
"All people who create a calorie deficit via diet and exercise lose weight" doesn't imply "all people who diet and exercise create a calorie deficit" either.
Exercising does create a calorie deficit for the time frame during which you exercise even in cases where it doesn't produce a deficit at daily accounting.
The most recent post in December's Stupid Questions article is from the 11th.
I suppose as the article's been pushed further down the list of new articles, it's had less exposure, so here's another one for the rest of December.
Plus I have a few questions, so I'll get it kicked off.
It was said in the last one, and it's good advice, I think:
This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Don't be shy, everyone has holes in their knowledge, though the fewer and the smaller we can make them, the better.
Please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.