Theory about other planets like earth

I've been thinking about life on other planets for a while, and just came up with a theory which makes sense (to me anyway).

Most people agree that our universe is endless, endlessness of planets, endlessness of space, endlessness of mass.

We have discovered so far three different things the world is made of (electrons, protons and neutrons).

If we have this endless mass, and IF (this is one big if) the universe is built on a limited amount of building stones my theory is correct.

With the following I assume that my two if's are correct.
Think of it this way. The earth is just a very long combination of the three different building stones. The universe is just an endless combination of the three different building stones. This means the earth's combinations will come again. Actually it will come again, endlessly.

So the conclusion is that there must be, not only one but, unlimited planets just like earth in the universe.

 

No one knows whether the universe is endless or not. There is evidence that suggests the universe is expanding, but nothing to show that it is endless.

 

It's impossible to prove that something is endless, but it's possible to prove that something isn't endless. So why not?

 

It's an interesting idea and you're not the first to propose it, but there it hasn't been shown the universe is infinite as well as expanding.

 

Actually, most scientists agree, that universe is not endless, it's just expanding to quickly, that you could never reach the edge, therefore, some people consider it endless.

 

Yes, but the that might happen so rarely, that even if there's millions of other Earth-like planets, they might be so far from eachother, that no living creature can ever visit another.

 

I think what you think too :S

 

The universe is infinite therefore, there is an infinite outcomes to possibilities.