One of the things I am finding myself repeating over and over again in this thread is that "absence of evidence is not evidence of absence."
Yes, well unfortunately that is a quote people often use erroneously.
Absence of evidence can, and not uncommonly is, used as evidence of the absence of something when testing for something that
should have evidence where it not absent.
This is a famous quote from Carl Sagan.
Its importance relies on the highlight of the logical fallacy where a hypothesis is assumed to be true or false before being scientifically and satisfactorily investigated.
In Sagan's words, the expression is a critique of the "impatience with ambiguity" exhibited by appeals to ignorance.
Despite what the expression may seem to imply, a lack of evidence can be informative, and thus evidence.
If you come across a freshly dead deer in the middle of a snow covered meadow, and there are no footprints other than that of the deers…..
the absence of wolf tracts is evidence that it wasn’t killed by wolves.
Absence of expected evidence is in this case, in fact, evidence of absence.
When testing new medicines, they go through extensive testing to determine side effects.
If properly and adequately tested, the lack of side effects discovered is evidence of the drug being safe.
Absence of evidence of side effects during testing…..is evidence of harmful effects being absent and that the drug can be considered safe.
It may not be absolutely conclusive, should new evidence be discovered, the determination could be subject to change.
You’ll note I said:
I have not yet encountered credible evidence that anything “beyond” it exists….
So I default to accepting what is known, until such time as credible evidence of anything else comes along.
This is not an appeal to ignorance…”an impatience with ambiguity”.
There have been multiple claims and hypotheses in the past which have been posited that have not withstood the rigors of scientific testing and analysis.
Science doesn’t claim absolute certainty…
It’s claim is of the best current understanding after extensive testing and analysis.
Since many have claimed things that
should have evidence to support it, yet when specifically tested for have failed to discover that evidence….that fact
is evidence that what they tested for is absent.
It may not amount to “proof” and may not necessarily be conclusive evidence…but it
is evidence against the proposal.
If something is proposed and is subsequently tested for and no verifiable evidence is found or even hinted at beyond assumption or subjective unverified hearsay, it is rational to discount that proposal until such time that verifiable evidence is brought to light.
If it were proposed that wolves killed the deer yet there are no wolf prints in the snow and no sign of wolves nearby, it is rational to conclude that wolves did not kill the deer.
Without any preconceived proposition of how the deer died, there would be no reason, without signs of wolves nearby and not finding wolf prints in the snow, to consider that it might have been wolves that killed deer, despite the fact that wolves are known to exist and to kill deer.
There would be evidence and therefore reason to conclude that it was not wolves that killed the deer.
It might well have died of old age, disease, poisoning, freezing, gun shot, brain aneurysm, any number of things…
Each could be tested for and where lack of signs (absence of evidence) that might support any given hypothesis are found that hypothesis can be reliably discounted (evidence of absence) of that being the cause of death.
Where #2 is concerned I said;
and have as of yet not encountered credible evidence that a deity exists…
… so see no reason or justification to assume one as a “creator” of it.
This is more akin to finding a dead deer in the snowy meadow with no prints in the snow, and not considering or concluding that Bigfoot may have killed the deer;… it would necessitate establishing that Bigfoot existed (and that Bigfoots kill deer) before it would be rational to even consider that as a possibility.
No reason to consider Bigfoot killed the deer…
No reason to consider a god created the universe.