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Just skimmed the article but my guess is that it’s a dream type experience where if you turned around 180 and walked the other direction it wouldn’t correspond to where you just came from. More like an infinite map.

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I don't think so, what they show on CS video is exactly the Dust2 map, not just something similar/inspired by it.

It's trained on moving around dust2, so as long as the previous frame was a view of dust2, the next frame is very likely to be a plausible subsequent view of dust2. In some sense, this encodes a map; but it's not what most people think of when they think about maps.

I'd be interested to see what happens if you look down at your feet for a while, then back up. If the ground looks the same everywhere, do you come up in a random place?

tried this irl and wound up here

It probably depends on what you see. As long as you have a broad view over a part of the map, you should stay in that region, but I guess that if you look at a mono-color wall, you probably find yourself in a very different part of the map when you look around yourself again.

But I am just guessing, and I haven't tried it yet.

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