[quote=whizzball1]
An article I read in accompaniment with one lecture had this analogy:Imagine 18 people standing in line. The amount of possible combinations for them to be arranged is 18! (18 factorial), which is (6.4 quadrillion). If the people switched to a different combination every minute, it would take them 12.18 billion years to try them all. Now, there are 18 amino acids that form one of the basic proteins. If it takes 12.18 billion years to try the combinations, one per , then how much more to make all the other proteins and arrange them into the right shapes for all the different parts of a cell?
[/quote]

It's just not possible.