Usually, it means good tools. I don't work in the video game industry personally but tooling that allows for these fast iterations seems to be a common theme a

Usually, it means good tools. I don't work in the video game industry personally but tooling that allows for these fast iterations seems to be a common theme among success stories. And if you look at the composition of a large game dev team, sometimes, tooling makes the largest part. I mean for programmers, not artists, obviously.