What Would Happen if You Left a Glass of Soda Out for 105 Days?

If you leave a glass of Pepsi out for a few hours, it goes flat.  But what if you left it out for a LOT longer than that?

Someone did a time-lapse video and left a glass of soda out for 105 days.  You can see it slowly evaporate.  After about a week, mold starts growing on the top.  And by the end, it’s just sludge at the bottom of the glass.