Let’s take a philosophic look at this: people always tend to look for a reason. For example, to understand why one asset goes down in price over another? However, for the most part, it is very hard or even impossible to establish the exact reason. And it’s also extremely difficult to discuss such reasons and to assess why it is the case. It should be pointed out, that very complex processes are taking happening all around the world. For example, one can research the impact of a growing hedgehog population in Australia on the exchange price for a dollar in Berlin. In general, this doesn’t suggest that there is any correlation, but someone could have just looked at the hedgehog population graphic and the dollar exchange rate for Germany and found a similar pattern between these two cases.