Hi Guardinthena! Thanks for your support and feedback, it means the world to us.
Nice catch, you seem pretty observant - we left a few subtle clues in the dialogue but didn't want to give everything away in the demo ;)
You're definitely thinking along the right track, and in the full project we intend to reveal a lot more information on that front.
Regarding Edna and the pipe piece - there are four pipes (including the one she gives you) in total scattered around the parking lot, and the first ones you find may not necessarily fit the machine, but I can assure you that the puzzle is solvable if you've found all of the pipes. After you finish Edna's segment, there is additional content before the end of the demo. Hope this helps, and once again thank you so much for taking the time to play and review Fading Remnants!