well I both agree and dissagree crumple zone. To apply quantum theory to the world governed by classical physics is where magical thinking comes into play. However quantum theory when applied to the quantum world is merely a usefull tool. To give a very poor metaphore, we can blow up a balloon with the power of our lungs, therefore we can inflate rubber with the power of our breath, but try blowing up your car tyres that way. This is where the confussion comes in. Then as IB points out, when we continue up the size scale, we reach black holes, and then we get lost.