Experience design is the methodical concrete application of existentialism to everyday life.

Concrete application is how an idea develops from theory to methodology to second-nature to reality itself.

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The ultimate ambition of a philosophy is to disappear into reality.

Maybe this explains why the United States, the first nation to be explicitly founded on philosophical principles, is famously unphilosophical: to live our way of life we need to our philosophy to be reality itself. To treat our foundation as subject to question is to dissolve the solid ground upon which we stand into liquid.