Nature is a lazy bum that it will always choose the path of least action. If we roll a ball on the floor, for instance, the ball will move in a path that requires the least action (energy multiplied by time) to get from the start to the end point. While we all accept Newtonian laws as intuitive we tend to look at Quantum Mechanics as weird and non-intuitive. Well, we are wrong. Why Quantum Mechanics Is Not So Weird after All sez Paul Qunicey. [via]
Now, once you've conquered the idea that Nature is lazy, you can move on to String Theory and its competitors that aim to show that Nature is even more loopy (or stringy as the case may be).
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I am sorry but nature is not lazy, humans are. Water will never stop flowing if given the opportunity, it will not stop flowing downhill just because it is tired of moving... No... Certain trees take longer to grow because like a lot of aspects of nature, they exist on a different time scale than we do.....
Oh yah and rolling a ball does not illustrate how nature is lazy, I am going to need a bit more than that to be convinced that our six billion year old planet is lazy... The earth has never stopped rotating because it needed rest..... Come on people, you call your self a scientist.... I think a quack is more like it....
I am starting a new theory, based on the idea that Nature is too lazy to tie her shoe strings. I call it the FlipFlop Theory. If that doesn't work out, I have another idea I call the Velcro Theory.