Binary Code

I used to think it so strange that the digital world is binary.  Everything computers do eventually gets boiled down to zeroes and ones; gates that are open or closed.  How can they do such complex tasks?

Then, I realized that DNA is binary*.  Sure there are four base pairs but there is only one entry per rung: either G-C or A-T.  All these people... all these life forms on this planet! How can there be such variety?

Then, I realized that charge, spin, quarks, and many other fundamental particles and their attributes are also binary (positive or negative; up or down; matter or antimatter; boson or fermion).  Either the excitation in the field exists (and you have a particle) or it doesn't.  

The Universe is binary*!

 

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*Maybe not binary exactly but certainly based off of limited number of discrete possibilities.