This game looks beautiful.
So, if his last one was about the atom bomb (maybe?), then is this one about Agent Orange?
This probably isn't the place for this, but Braid isn't "about" the atom bomb, at least not in the way that I read it. It just used the search for the atom bomb as one of its several avenues for exploring the idea of what it means to get what you've been looking for for what feels like your whole life. Braid is a game where the story is truly there in service of what the gameplay is communicating, which is one of the things that makes it such a compelling experience. The endless search for what Braid is "about" is a bit misguided, because Braid isn't at all convoluted or duplicitous about what it's about; Braid is about solving puzzles.
Braid does have the side effect of being one of gaming's great Rorschach tests, though. Everybody either thinks it's about the atom bomb or thinks it's about an abusive relationship. Which story thread a person thinks is a metaphor for the other probably says something about him or her.
Anyway, hot damn I am all the way excited for The Witness. As I think I've posted before here, this game is probably my most anticipated thing coming out this year, across all media.
Braid is about a young man who drove away his loved one by creating a weapon that makes him the ultimate monster. That's my take on it.
It could be about anything, it could be about a lost album like SMiLE, it could be about the atom bomb, it could be about a lost and twisted love, et cetera. I agree that pigeon holing it as "about the atom bomb" is lame, dumb, and kind of depressing that people dropped it as a pretentious atom bomb metaphor game. The brilliance is that it is intuitively integrated into the game and its mechanics.
Yeah, that's the most frustrating part. People can think whatever they want about Braid, just so long as they don't think that the line referencing the atom bomb is some The Sixth Sense late-game twist where you're supposed to suddenly recall every other story beat in the game and go "Ohhhhh, it was about the atom bomb the whole time". No, it wasn't, not in the slightest; anyone who thinks that conclusion makes even a bit of sense is a simpleton.
The atom bomb reference at the end is a brief extension, an addendum, to the theme the game is exploring, but is by no means the point the game was building to the whole time.