It is just one of those stupid things that drives me nuts for no reason. Very interesting book btw about reoccuring patterns in the universe.
They say that no two snowflakes are alike , but the mathematician in me can see this statement is either trivial or a gross exageration. Any two objects in the universe are different if you look closely enough - well maybe not two electrons, though even there I wonder. But if you accept only those differences that are visable under a low-powered lens, and take into account just how many snowflakes have fallen in the Earths's four billion year history, surely somewhere some time, some snowflake double must have apppeared? Ian Stewart - What Shape is a Snowflake?
No two snowflakes are exactly identical, down to the precise number of water molecules, spin of electrons, isotope abundance of hydrogen and oxygen, etc. On the other hand, it is possible for two snowflakes to look exactly alike and any given snowflake probably has had a good match at some point in history. Since so many factors affect the structure of a snowflake and since a snowflake's structure is constantly changing in response to environmental conditions, it is improbable that anyone would see two identical snowflakes. ask.com