If there was no radioactive decay as we know it today, then any method you use in measuring isotopes as if they came about by radioactive decay would not matter. You are using the belief to assign dates based on ratios (that are now caused by radioactive decay sequences)
The question is whether the same laws applied/existed long ago on earth, NOT whether if we assume nature was the same would everything look old!
Think of it like this. Suppose there was no decay until some specific time in the past. Then the decay turned on. ALL of the results for the dates NOW would read the time that the decay turned on. And that is NOT the case.
Same with deposition. We cannot use today's deposition as any guide to a time when nature was different.
Except now, getting consistency between the radioactive decay (which turned on at some point) and the layers in the lake (which were happening faster) would be impossible,
Once again, it is the consistency between different methods that gives the evidence.
False, false false. All that needs to have happened was that the isotopes were in some other relationship to each other than the parent daughter relationship we see today!
Except that relation would have to be different for every different lake, every different rock, etc. NOT reasonable.
Simple. Because ratios of isotopes also changed (for whatever reason) in the former nature. Naturally when we look at different layers that contain isotopes there will be the pattern of change. Your problem is that you try to attribute this change to only the things we see happening in this nature.
And *that* is last Thursdayism.
If you could prove there was any decay in the past, that would be a good start! Remember, the way to do that could never involve assuming there was and attributing ratios to decay. Yes, in the last 4000 years or whatever, some isotopes have been produced by decay, that we can use for dates. However you try to claim ALL ratios in the far past, therefore, must also be due to it!
If the decays all started at one time, the dates we get would all be for that time. But they are not.
You have NO way to check consistency beyond the time our nature existed. The only imaginary meeting is in dream land where you have imaginary dates agree with each other. (even if you needed to toss around millions of imaginary years as needed either way to find that agreement in some cases)
Of course there is a way to test consistency prior to the current nature. Some things existed then that also exist now. If things were significantly different in the past, we would not be able to get consistency of the results NOW unless there was a HUGE coincidence.
All deposition in a different nature, whatever lake does not matter...would have been faster or different! The patterns of isotope ratios also would not be due to decay as they are now. It is a simple case of you misreading evidences.
Precisely. They would have ALL been different. So that they give the same result NOW based on those differences THEN is a huge coincidence in your way of looking at things, but is entirely expected in mine.
No. It gets into whether there was any decay or not. Not how long decay may or may not have taken!
And if there was not decay, your problem of consistent results is even worse.