Maniacal
the green Napoleon
Spoiler :
1. This takes place hundreds of years after the end of Portal 1;
2. Chell is probably the daughter of Caroline and Cave, or the clone of Caroline;
3. This takes place after the end of the Half Life storyline since the first Portal occurred during the same time, and this takes place hundreds or thousands of years after that, so presumably the Earth still exists although it is unclear if humans are still there, if the Combine has eliminated all of us, etc. etc., since we come out into a wheat field (what's the significance of the King Turret we see at the end?);
4. The ending of Portal 1 was changed by a patch, and now you get dragged back underground at the end by a party robot??? That was what really confused me--the entire time I was playing Portal 2 I was assuming I was just a clone of the character I played in the first Portal, since I remember escaping at the end of Portal and I played it before they did a ninja edit to the end!
Am I missing anything??
Spoiler :
1. This is the most ridiculous assumption I've seen regarding Portal 2 as there is no way in hell this game takes place more than a hundred years after Portal. Unless Valve utterly failed in aging the place properly, it would be a LOT more worn, overgrown and broken after hundreds of years. The potato experiments from bring your daughter to work day would not have survived that long nor is a lot of the plant growth particularly big even in the areas just under the surface where the roof collapsed.
2. Chell cannot be the daughter of both of them because they are both caucasian and Chell is clearly mixed caucasian and asian. However, I do think its likely one of them is her birth parent, probably Caroline. Most likely she was adopted by one of the employees and his wife (her potato project says "special ingrediants from Daddy's work") and may not have known she was adopted.
3. Portal probably occurred between Half-Life 1 and Half-Life 2 (iirc HL1 takes place sometime between 2000 and 2010, and Gordon is brought back for Half-Life 2 in the 2020s). Portal 2 probably takes place during or after HL2 but probably not mroe than a few decades after Portal 1 due to as mentioned above the condition of the center, especially since there is still lots of wood despite the rather moist enviroment).
4. Yes, the ending of Portal 1 had you being dragged back inside (though you black out before you get very far) and is brought up again in the pre-release of Portal 2 "Lab Rat" comic. A robot drags you back inside and puts you in stasis, Rattman (last surviving scientist) sacrifices his life so Chell is saved (he is also responsible for you being tested in Portal 1 because he thought Chell could defeat GlaDOS).