How old is the Earth?

[Statler Waldorf]

I know the flood comes into the answer for this one, Noah took 2 of every animal as ordered by God but for some reason he didn't take the Dinosaurs .... typical human, can't follow Gods instructions to the letter even when it comes to genocide. Still, would have been difficult to get those Tyrannosaurs and Brontosauruses on the Ark. And while you are at it, you can also tell us how there was a land bridge between Asia and Australia so all the Kangaroos and Koalas could migrate to Australia after the flood. And why did most marsupials decide they all wanted to live in Australia? Why don't we find Kangaroos and other Australian animals scattered between the middle east and Australia?

LOL, would have been harder than you think to get Brontosaurus on the Ark considering Brontosaurus never existed. It's pretty common knowledge that the Brontosaurus was a hybridization of fossils from other dinosaurs, having an apatosaurus body with a camarasaurus head. I thought you guys were supposed to be the Dinosaur experts? lol.

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can you conclude that radio-metric decay has always been constant by observing to be constant for 100 years?

The earth circumferance analogy was certainly perfect for the point I was attempting to make.
In any case, sure, we can certainly move back to radiometric dating.

Yes, it can, in fact, be proven to be consistent and for a number of reasons:

First of all, we would have seen it given all of the radiometric dating among all of the samples taken among all of the radioactive elements used for this purpose, to which we have derieved samples from all over the world and a number from outside of Earth's atmosphere, including the Moon, Mars, and various extraterrestrial rocks that have crashed into the planet over the years.
The thing is - they all date accurately in contrast to one another and not one of them has shown a margin of error that would make dating techniques unviable and not one of them has a different decay rate between materials of the same radioactive element anywhere.

As such, despite variables that allow us to view samples from wildly different places all around the solar system, radiometric dating has never proven to be inconsistent and because of this, it is highly unlikely that it has been inconsistent at another point in time.

This is analagous to how we can tell that boys and girls grow up at different rates at different times to a different average height without necessarily following a sample over the course of their entire lifetimes. The same is true for radiometric dating samples.

Second of all, different radiometric isotopes decay at different rates. There are no known methods of changing all of them simultaneously under the same process.

Third of all, a variable decay rate would violate numerous proven fundemental aspects of quantum mechanics (I believe the strong force was mentioned by another person you dismissed earlier in this or the other thread).

As such, for these reasons and more, radiometric dating is highly precise and consistent, despite attempts by the Curies and others to prove otherwise.

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I disagree. There are numerous lines of evidence that show the Earth has experienced at lesat one period of accelerated radiometric decay- one such example is examining helium diffusion out of zircons from the Precambrian granite in Fenton Hills, New Mexico. Of course periods of accelerlated radiometric decay would lead to greatly inflated age estimates. Most people do not realize that it would take a very small altering of the nuclear or strong forces in order to cause an increase in the amount of alpha decay by a magnitude of up to 8.