Well, who the hell decided that? How many snowflakes did we actually LOOK at before we said that? Are we still checking? Did we coordinate internationally to scan as many snowflakes as possible? I bet somewhere in history, two snowflakes were identical.
Now, no two people are alike; I get the appeal of telling the snowflake thing to little children, to demonstrate the uniqueness of the Creation--which then, of course, prompts their reassurance that they, too, are unique in all of history.
But people actually ARE unique. Even if someone in the world had my EXACT same chromosomal structure and born at EXACTLY the same time in history, she would have been born to different parents in a different space. She would have attended a different school. I know, because I didn't see her at Patapsco High School. She could be at Columbia, or could've been at PGCC or AACC, but she definitely was not a Patapsco Patriot. She wasn't a Moonie. I don't think she is from Dundalk. She's not a Sofinowski.
My point in distinguishing those (among many) factors is to say that nuture accounts for a LOT in our personality, how we perceive and react to things, how we choose to be. So even if, physically, there is another Christa Sofinowski somewhere in time and space, she is not the same. I am still a unique being.
BUT SNOWFLAKES? ALL THEY DO IS FORM AND THEN FALL.
So if two snowflakes formed exactly the same--which I definitely think is possible, out of all the snowflakes in history--they would still fall and hit the ground in exactly the same manner, therefore never distinguishing themselves as unique from its identical counterpart.
I just think it is really arrogant for us to assume something about snowflakes that we can't actually prove.
Happy Snow Day, NYC :)