Did Geno Smith Says Heads Or Tails Last Night?

Who can forget about the infamous blue/gold dress. 

Or laurel/yanny:

Now it's heads/tails with Geno Smith:

To my eye, it clearly looks like tails. However, the ref claimed that he said heads. The coin landed on heads and the Seahawks got the ball. Here is audio of said event!

Did he say heads? Or did he say tails? In the end, it doesn't really matter. However, life doesn't really matter because we all die anyways. So, let's debate.