Meanwhile we nervously await the financial crisis from the euro zone we know it's coming, but we have no idea whether it will simply leave us even poorer, or whether the banks will collapse and money will be worthless and parents will end up having to eat their children (or end up being eaten by them, depending on the size and age of the child).
In a similar sense, when we do cellular research for even -- like for cancer research, for instance, on Earth the cells actually collapse under their own weight and so their growth on Earth are a little bit distorted.