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In the last video we tried to relate what 13.7 billion years really means

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by compressing it to ten years, which is still a pretty long time, at least from our perspective.

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And we saw that these huge periods of time, everything that's happened

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since the United States Declaration of Independence

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all gets compressed into just five seconds!

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And that's, you know, that's not much when you think about ten years. I mean ten years!

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You would wait around a lot, that's a huge amount of time.

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So hopefully that put things in perspective a little bit.

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What I want to do in this video is kind of do the same thing but

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relate the 13.7 billion years if that were a distance

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or the length of a timeline how big each of these periods would be.

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So just to start off, if the timeline...

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I'm recording this in High Definition right now.

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There should be 1280 pixels wide, depending on where you're watching it,

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so maybe you're watching it on a High-Def TV.

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If the timeline was the width of my screen right over here

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If the timeline was the width of my screen here

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So if that was 13.7 billion years from there

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let's say this is the beginning of the universe

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and this is our present time

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If that was 13.7 billion years the amount of time that humans, modern humans,

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the people who look and think like us

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the amount of time that we have been on this planet

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will not even be a pixel

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This little dot I drew is multiple pixels.

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The amount of time we have been here would not even be a pixel

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In fact a pixal, and that dot I drew is about four pixals, But a pixel

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just one little pixal on my screen

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would represent eleven million years.

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Let me scroll over

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It would represent eleven million, eleven million years.

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So if this was the timeline the dinosaurs would have been extinct

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about six pixels from the end.

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So it would be right about...

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So six pixels from the end is when the dinosaurs would have gotten extinct and

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the amount of time that modern humans are on the planet

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wouldn't even register here.

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It would be one twentieth of that pixel over there.

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In fact if we just expanded that very last pixel...

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If we were to expand that very last pixel, I'll do it in yellow,

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the very last tiny pixel that you can't see if we were to expand that