Originally Posted by antlers
[/quote]What I posted regarding the radioactive decay of U-238 is factual. It’s universally acknowledged, accepted, and agreed upon by all credible scientific minds that have any real knowledge of this subject matter. Our knowledge of radioactive half-lives isn’t guesswork, it is known...factual...information. That knowledge is used to calculate how long radioactive waste must be stored; it enables doctors to use radioactive medical tracers; and it allows us to date objects/artifacts - just a few examples of how sound knowledge of radioactive half-lives can be/is used. If you choose to think otherwise, so be it.

The age of the Earth is estimated at 14.5 billion. The half life of U238 is 4.5 billion. So that indicates at formation of the Earth, there was a bit more than 8 times as much U238 present as is today. There are 16 (iirc) intermediate steps including Thorium, before an atom of U238 becomes lead, each step with its own half life number.

Hardly the same as "Every bit of U238 would be lead today."

People who choose to brew up their own storms bitch loudest about the rain.