[ExI] Everything in the Universe - in one graph.

[BillK]

Everything in the Universe Fits in This One Graph. Even the Impossible Stuff.
October 27, 2023 by Nancy Atkinson

<https://www.universetoday.com/163927/everything-in-the-universe-fits-in-this-one-graph-even-the-impossible-stuff/>

Quote:
The Universe has physical constants, such as the force of gravity that
define everything. If these constants were any different, our Universe
would look quite different. When you consider the types of objects
that exist in our Universe – from quarks and bacteria to fleas and
superclusters — different forces dominate their existence.

A fascinating new graph plots everything in the known Universe and
shows us what’s possible. It also shows what types of objects are
prohibited by the laws of physics as we understand them.

The graph, produced by astrophysicists Charles Lineweaver and Vihan
Patel from the Australian National University’s Planetary Science
Institute (PSI) is primarily a thought experiment that – the authors
hope – will get people to think about all the unanswered questions we
have about the Universe.

The graph and their paper, titled “All objects and some questions,”
provides an overview of the thermal history of the Universe and the
sequence of objects (e.g., protons, planets, and galaxies) that
condensed out of the background as the Universe expanded and cooled.
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BillK