WWB Trainer
Quick Hits
MODE:
~
4 minutes
Cosmology.
Quick Hits
10 random key ideas.
1.
The universe is likely to expand forever toward a cold, isolated end known as the Big Freeze, but that’s trillions of years from now.
2.
Quote:
- Heraclitus.
- 500 BCE.
Meaning:
Change is the only form of permanence that exists—first glimpsed by ancient thinkers, and now woven into the fabric of modern science.
3.
From History: 1610
In 1610, Galileo set incorrect maps of the cosmos on the right path. Our mental model of Earth at the center of the universe had to evolve to match observations.
4.
Competing ideas about the end of the universe, with the Big Freeze currently best supported by observations.
5.
Quote:
- Copernicus.
- 1543.
From History:
Meaning:
Nicolaus Copernicus judged ideas not by tradition or authority, but by how well they fit the evidence.
6.
From History: 13.4 Billion Years Ago
Galaxies formed early in cosmic history, within a few hundred million years of the Big Bang.
7.
Article summary:
If some version of the Big Crunch model ever returns to favor, we can picture one full cosmic cycle, a kind of cosmic year. Cosmocycles is that speculative idea.
8.
Quote:
- Carl Sagan.
- circa 1980.
Meaning:
We are not separate from the universe—we are expressions of it, linked by matter, chemistry, and atoms.
9.
From History: Predicted in 1932
The Oort Cloud may be real, but it remains unseen. It is a strong speculative idea: rationally proposed, empirically unconfirmed, and waiting for direct observation.
10.
Article summary:
Before instruments extended our vision, the universe was understood through naked-eye observation—the Sun, Moon, and five wandering planets set against a backdrop of stars that sometimes fell.
Done. Refresh for another set.
TST Trainer
(c) 2025-2026 TouchstoneTruth.
Writing and coding by Michael Alan Prestwood.
(c) 2025-2026 TouchstoneTruth.
Writing and coding by Michael Alan Prestwood.
