Popcorn in my soup? What's that you say? Is this some culinary accident like the invention of the hush puppie? Why no, I believe this wonderful concoction is one for which we can thank the Native Americans. Now, one place I read it was from was Central America, but if I'm remembering correctly, which I'll put at ~70% probability, I believe I experienced this for the first time in Ecuador. Also, my first taste of Quinoa, which I highly recommend, and also in soups! However, I was too lazy, hence no quinoa today, but I did throw some popcorn in my sweet potato soup, and found it to be much more delectable than the box's recommendation of rice, which I know as I tried that the day before.
While, yes, it might sound weird, I liken it to the well-known tradition of crackers in soup, and in summary, the popcorn is better. Trust me on this, at least enough to try it that is! It imparts just a hint of an extra flavor (nutty almost), kind of like the icing on the proverbial cake soup. That is, unless, you're one of those icing addicts. And with that I will close, amused that my old (F.O.O.D) theme has crept it's way back in. :)
Cheers! ... and go throw some popcorn in that soup.