This is why I referred to the Stay Puft blowing up situation.Sooooo if nobody had read the comic or the viral digital book then nobody would have known?The point is if the filmmakers can't be bothered to explain the science properly in the movie why should we think it makes sense? I mean I'm seeing ghosts get shredded and chopped in half. What the hell?!
This is not explained in the movie at all. Most Egon says is the door swings both ways and hints that they can close it by crossing the streams. No mention of this destroying (or capturing) Gozer .
Astyanax has a nice explanation for it, and I believe it's probably true, and make my peace.
Yet you seem dead set on pointing out a flaw that is explained in the GB:ATC related book, while the Gozer situation was not. That's just you having a bit of double standards.