Board Thread:Questions and Answers/@comment-26919090-20170404012605/@comment-25458443-20170408085459

2.) why would the incinerator be conveniently placed in GLaDOS's Lair? -Game design, for the actual answer, but I assumed that when they were putting cores on her they'd immediately destroy the cores that didn't actually help her do science/prevent her from killing everyone.

3.) Why would GLaDOS put test subjects in the Companion Cube? -There's no actual evidence that she does that, I get that it's a fan theory and it's a fan theory I have no problems with but the fact that it's a theory and not a plotpoint means the simple answer to this question is pretty much just "because she doesn't"

4.) Why can't portals be placed in mid-air just like wormholes? Or why do portal only open if they meet a wall? -This one is all game design. If the gun just could create a portal in anywhere in the air then there's no way to clearly define areas you "can't portal to" in a clean simple way that also can apply to the background levels on all the catwalks and such. Plus choosing a single place from midair in a 3d environment from first person with a gun is a difficult mechanic to make satisfying and understandable but "shoot the wall" is both satisfying AND immediately understandable to all gamers.