From the skin cells to the iron in your blood, the carbon in your genes to the gold on your finger, all created over thirteen billion years ago.

from GZA (Ft. Christopher Emdin & Science Genius) – Science Genius 12.12.12 Speech Lyrics on Rap Genius

Meaning

According to physics, the big bang occurred approximately 13.77 billion years ago (a long ass time ago), after which time the Universe was in an extremely hot and dense state and began expanding rapidly. After the initial expansion, the Universe cooled sufficiently to allow energy to be converted into various subatomic particles, including protons, neutrons, and electrons. These particles make up the keyboard you’re typing on, the fingers you are typing with and the eyes you are reading this post with. EVERYTHING!

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