Questions that Overture raised

[Doffy90]

Very good questions. I have one pretty basic as well to add:

Why even start human experiments? People just don't do it cause they are bored, something must have made them start it. (If there even is human experiments which seems very likely at this point)

Did Red honestly fake that scream? Sounded pretty real to me.
Why did we kill him? I mean if someone told me to kill them I could never have done it, especially if they had the answers that Phillip was looking for (I can't remember this well but I think we switched on the furnace or something and before that he says he lied or something).
If Red could move around (which I think he could because of the writing on the wall, you know when we turn on/off the light) then how did he end up in the furnace?

I really should play the game again.