Part of this is that the people working on the game have a rough idea of what to plan for to make impressive graphics that are beyond current standards, and are able to keep that in mind when making the game. Like, if you know that your game isn’t going to come out for a while, you can plan for really impressive graphics that you’ll keep working and refining as the game develops, with the knowledge that near the end of production you can adjust them as needed.
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