[Yaniv (OP)]

In my theory the size of the earth is balanced by opposing forces; gravity and pressure. The force of gravity decreases over time and internal pressure pushes the expansion of the earth. Sea levels are determined by (liquid) water volume to surface area ratio. The volume of water increases over time by volcanic gassing (CO2, N2, H2O...). In time, the surface area of earth increases exponentially and volume of water increases at a decelerating rate. At the beginning of the Archean eon, after Theia impacted the earth and blew its atmosphere away, sea levels began to rise and by the end of the Proterozoic eon flooded the entire globe. All the continents but a few tall volcanic mountains were under water. By the Cambrian period the increase in surface area exceeded the rate of water accumulation and sea levels began to drop. Fossils of non-vascular plants are found in the Ordovician, vascular plants in the Silurian and the first forests in the Devonian implying parts of the continents were permanently above water. Had the moon not formed earth's atmosphere would have been as thick as Venus. 

[Origin]

In my theory

You don't have a theory, you have a conjecture.

by the end of the Proterozoic eon flooded the entire globe.

If gravity was so much greater then, that would mean that the sun would have a much higher rate of fusion which would have resulted in the earth being sterilized.

[Bored chemist]

In my theory the size of the earth is balanced by opposing forces; gravity and pressure.

That's pretty close to correct.

The force of gravity decreases over time

That's inconsistent with  the evidence and with the laws of physics.

You don't have a theory, you have a conjecture.

He has a plausible conjecture.
He also has an error.

[Yaniv (OP)]

by the end of the Proterozoic eon flooded the entire globe.
If gravity was so much greater then, that would mean that the sun would have a much higher rate of fusion which would have resulted in the earth being sterilized.

The rate of cellular repair and division exceeded the rate of degradation. As to the origin of life the rate of RNA polymerization and replication exceeded the rate of degradation. If not on the equator at the poles.

[Bored chemist]

by the end of the Proterozoic eon flooded the entire globe.
If gravity was so much greater then, that would mean that the sun would have a much higher rate of fusion which would have resulted in the earth being sterilized.

The rate of cellular repair and division exceeded the rate of degradation. As to the origin of life the rate of RNA polymerization and replication exceeded the rate of degradation. If not on the equator at the poles.

Please show the maths you used to calculate the repair rates and the radiation flux.

[Kryptid]

Measurements of supernova indicate that the value of the gravitational constant has changed very little (or not at all) over the past 9 billion years: https://arxiv.org/pdf/1402.1534.pdf

[Yaniv (OP)]

Measurements of supernova indicate that the value of the gravitational constant has changed very little (or not at all) over the past 9 billion years: https://arxiv.org/pdf/1402.1534.pdf

I heard distant galaxies are more luminous than expected consistent with a decreasing force of gravity.

[Yaniv (OP)]

As the earth expands further its atmosphere will get thinner, global temperatures will drop, primary productivity and biodiversity reduced, at some point the oceans will freeze entombing the remains of life. At this stage the earth will look like Mars and I will head to Venus.

[Kryptid]

I heard distant galaxies are more luminous than expected consistent with a decreasing force of gravity.

Do you have a citation for that?

[Yaniv (OP)]

I heard distant galaxies are more luminous than expected consistent with a decreasing force of gravity.

Do you have a citation for that?

https://www.nasa.gov/feature/jpl/new-clues-about-how-ancient-galaxies-lit-up-the-universe

[Colin2B]

I heard distant galaxies are more luminous than expected consistent with a decreasing force of gravity.

Do you have a citation for that?

https://www.nasa.gov/feature/jpl/new-clues-about-how-ancient-galaxies-lit-up-the-universe

This is not a citation for a decreasing force of gravity, please provide one

[Yaniv (OP)]

This is not a citation for a decreasing force of gravity, please provide one

I don't expect to find any paper in the scientific literature contradicting the fixed constants of physics. Higher rates of star formation and hydrogen fusion in the past are consistent with a decreasing force of gravity.

[Bored chemist]

I heard distant galaxies are more luminous than expected consistent with a decreasing force of gravity.

Do you have a citation for that?

https://www.nasa.gov/feature/jpl/new-clues-about-how-ancient-galaxies-lit-up-the-universe

So, to be clear, you don't have a citation for your idea.

[Yaniv (OP)]

In my theory polar ice caps and deserts are recent Cenozoic features.

[Colin2B]

I don't expect to find any paper in the scientific literature contradicting the fixed constants of physics.

Then don’t claim a citation, that’s misrepresentation

[Bored chemist]

In my theory

You don't have a theory.
Stop pretending you do.

[Yaniv (OP)]

Video Removed

Describe your theory here rather than link to external sites

[Origin]

By the Cambrian period the increase in surface area exceeded the rate of water accumulation and sea levels began to drop

So the 'biblical flood' occurred before people or even mammals existed?  The flood you are describing seems different than the flood depicted in the bible.

Of course the mechanism you are claiming is just unevidenced imagination.

[Kryptid]

https://www.nasa.gov/feature/jpl/new-clues-about-how-ancient-galaxies-lit-up-the-universe

Assuming, for the sake of argument, that this study is evidence for brighter stars 13 billion years ago, that in no way contradicts the study I posted. What I posted shows that there is no evidence for a change in the gravitational constant over the past 9 billion years, whereas this link you posted is about a time period well before that. The Earth has only been around for about 4.5 billion years. So the study I posted earlier covers the entire time that Earth has been here while the one you posted does not.

I would also like to point out that solids and liquids are very difficult to compress. Therefore, even if Earth's gravity was higher in the past, that would not have had much impact on its size (unless its gravity was much, much higher, in which case it would have been orbiting much closer to a much hotter Sun, making life far less likely to exist).

[Yaniv (OP)]

Quote from: Yaniv on 06/01/2023 14:22:46
In my theory the size of the earth is balanced by opposing forces; gravity and pressure.
That's pretty close to correct.

https://twitter.com/Yaniv_Stern/status/1612007997441556481/photo/1