Ricotez wrote:
If we knew that, we wouldn't be so eager to play Portal 2. Chell's, GLaDOS's and Aperture Science's unknown background is one of the main plot devices of the game, and with the few hints the game actually gives, one really can't figure out the whole story. We do know Aperture Science were [spoiler]Black Mesa's competitors[/spoiler]; where the first invented a device that could create wormholes, [spoiler]the latter invented a teleporter.[/spoiler]
[spoiler]It's also very probable GLaDOS killed the entire Aperture Science staff, though it does raise the question how they managed to install a morality core after she flooded the Enrichment Center with neurotoxins. She also never actually says she killed them all, only that she deployed the toxins. Maybe Chell was one of the survivors, and GLaDOS wiped their memories and carried on testing like nothing had ever happened?[/spoiler]
You know [spoiler]In Portal Prelude (Let's just pretend it's the ACTAUL story until Valve releases their version), you installl the core while the timer is running but because they were running she probably couldn't stop it - Even if she wanted to because of the new core.[/spoiler]