This picture represents a single point in time. We know that the very next moment this baby will either:
- a) continue to travel up (if it has just been thrown)
- b) travel down (if it was already on the way down)
From this one picture alone, there is no way that we can tell which is going to happen. However, if we had another picture from before, then we would be able to calculate not only which direction the baby was traveling but also how far.
I guess my question is this: How are objects in the Universe able to travel along such a predictable path without any knowledge of their previous location?