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The speed you know is only your spatial speed, but you also have a speed through time. The two together make something called a 4-velocity and its size is always the speed of light.

Nick Lucid - Host, Writer, Editor, Animator
Em Lucid - Producer
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VIDEO ANNOTATIONS/CARDS

Speed of Light is Infinite:
   • The Speed of Light is Infinite... Kin...  
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RELATED YOUTUBE VIDEOS

ScienceClic on 4-Velocity:
   • We all move at the Speed of Light  

PBS Space Time on 4-Velocity:
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ADDITIONAL READING

http://hyperphysics.phy-astr.gsu.edu/...
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LINKS TO COMMENTS

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IMAGE/VIDEO CREDITS

Rene Descartes:
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TIME CODES

00:00 Cold Open
00:37 Introduction
00:48 3D Velocity
01:31 What is a Tangent?
02:12 What is Speed?
02:46 Coordinate System
03:47 4D Spacetime
04:18 4-Velocity is just like 3-Velocity
04:57 Mathematical Definition
05:43 The 2 Points of View
06:23 Intuition
07:24 What about Photons?
08:08 Summary
08:26 Sponsor Message
09:48 Outro
09:54 Featured Comment