The fact that we're alive shows that as a species we've been historically very 'lucky', the biggest 'break' being in the finely tuned initial conditions for our universe. At least a level I many-worlds theory is needed to explain this. But in a higher level MWT this good luck might have extended further. For instance, our planet might have experienced an unusually high number of 'near misses' with other astronomical bodies. Now that we're here to watch, the universe will be forced to obey the law of averages, so there could be a significantly higher probability of a deadly asteroid collision than would be indicated by the historical frequeny of said events. Perhaps we should carefully compare how often the other planets have been hit with how often we have: They certainly look more craterful....
Have there been any serious studies into this? It's not just idle philosophial musings, it affects the way our governments should be spending our money (or rather your money; I'm a non-earning student).