Ok first off, its nice to meet you all. Second, my knowledge of physics is limited to 5 seasons of The Universe on Netflix. :uhh: This will be my only question though so bare with me. Physicists seem to be SURE (at this time at least) about the age of the universe being around 13-14 billion years old. The way they arrive at this is by running the camera backwards so to speak and using known variables like the speed of light to calculate the age... more or less (right?). So, this is going to be in layman's terms but, if the universe is expanding and light is traveling, at light speed, across the universe then couldn't that throw off or skew calculations? Or what if time itself is slowing down on a universal scale as it cools and expands and we can't tell because were inside it, like being inside the edge of an event horizon... What I'm getting at is, couldn't there still be unknown variables that could greatly influence/change our idea of how old the Universe is? Or are you guys really THAT positive about it? Thank you for any advice. I'm gonna go watch some more Netflix now.