Suppose the universe is infinitely big, then even the most improbable thing will happen somewhere in the universe, in fact it will happen an infinite number of times. So what we consider to be probable things and what we consider to be improbable things are both infinite. So how do we rule out improbable things? for example we rule the Higgs signature as being a fluke because that is so unlikely. But in an infinite universe this statistical fluke and the real single both happen an infinite number of times. So how can we say one thing is more probable than another? of course one easy way out of this is to say the universe is not infinite and maybe it isn't. But it seems pretty ludicrous to me to demand that universe must be a certain size so that we can do probabilities. Is there another way out of this?