No. Of course it's a matter of definition. Someone can toss a coin and say the result is random, and he'd be right. But the topic is about "absolute randomness".
Let's consider this: We "copy" the Universe. Every single atom. We have now 2 identical universes. Now, no matter how much "time" we'd wait, I think the 2 universes would always be the same. Every person would do exactly same things, and every atom would behave in exact same manner.
So yes, some "medium with infinite power" would be able to predict this topic will be posted with that exact description.