As we approach more realistic graphics, aliasing is becoming more of a hindrance in conveying said realism.
This computer generated rendering illustrates the issue perfectly:
Except that isn't a rendering, that is real footage compressed in such a way as to introduce temporal aliasing artifacts. As you can see it doesn't matter how realistic graphics become, the image will always look fake if aliased popping occurs.
Temporal anti-aliasing fixes this problem.
More reading is provided below: