I said complete control. With say a fish tank, we can't say what the gravity is at a flick of the switch. But the main point is with a fish, you can easily move it to a different environment not under our control (perhaps at all, like say the ocean).
If we could control everything about the fish tank, the fish and everything else in it, to the point of where every atom, as well as have fine control over each of those things. I might say that the fish is only alive to a point, since we control so much about it. It ceases to be so much as fish as a toy. As we change its color and remove it from existence whenever we care to.