Friday, August 2, 2019

Rescaling in Physics?

The Universal Law That Aims Time’s Arrow
A new look at a ubiquitous phenomenon has uncovered unexpected fractal behavior that could give us clues about the early universe and the arrow of time.

Over the last few years, Berges and a network of colleagues have uncovered a surprising answer. The researchers have discovered simple, so-called “universal” laws governing the initial stages of change in a variety of systems consisting of many particles that are far from thermal equilibrium. Their calculations indicate that these systems — examples include the hottest plasma ever produced on Earth and the coldest gas, and perhaps also the field of energy that theoretically filled the universe in its first split second — begin to evolve in time in a way described by the same handful of universal numbers, no matter what the systems consist of.
They are saying the a system out of thermal equilibrium will 'scale' like a fractal.  These are events before thermal energy has spread evenly, the scaling looks like congested particles to me.

But, it makes me a bit paranoid as this was just the subject on my mind recently, the constant rescaling that happens in an aggregate of agents.  I call this rescaling the Baumol process, economists are not so sure.

In sandbox, the arrow of time is describes as 'traders covering arbitrage moments via rescale'. The system always tends to maximize entropy from its current condition, but it can never really guarantee that entropy increases always, it just increases during a noticeable hedge. A hedge is a point of thermal disequilibrium.

But my paranoia is about the author at Quanta magazine, like someone is watching me. Natalie Wolchover is her name at Quanta and she seems awfully smart. I read all of her stuff.

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