CONCEPT
The Block Universe
The picture of reality — descended from Einstein's relativity — in which <em>past, present, and future coexist with equal ontological standing</em>, the distinction between before and after reduced to a stubbornly persistent illusion.
The block universe is the dominant picture in twentieth-century physics: a four-dimensional geometry in which all events — past, present, and future — are equally real, equally existing, equally determinate. What humans experience as the flow of time is, in this picture, a feature of consciousness rather than a feature of reality. Einstein articulated the position explicitly in a condolence letter to the family of his lifelong friend Michele Besso: the distinction between past, present, and future is, for those who believe in physics, only a stubbornly persistent illusion. Smolin's temporal naturalism is a sustained assault on this picture. If the block universe is correct, genuine novelty is impossible, choices are not constitutive, and the orange pill moment is a subjective shift in perspective rather than a real cosmological event.
In The You On AI Field Guide
The block universe emerged from the mathematical structure of special and general relativity. Einstein's equations treat time as a dimension analogous to the three spatial dimensions
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