The Incredibly Lucky JTEM wrote:
> Ron O wrote:
>
>> You know who the ID perps are. They are the ones that sold you the ID
>> creationist scam, and then ran the bait and switch
>
> Actually, this makes you WORSE. It makes you MORE
> gullible. You makes you a BIGGER jackass.
>
> There is no "Scientific Alternative" to creationism.
>
> There isn't. If you weren't scientifically illiterate
> you'd know this.
>
> Abiogenesis is not falsifiable. It's not a valid
> scientific hypothesis.
>
It isn't meant to be, which sort of renders your claim moot, even before
one were to analyze if falsifiability is a necessary condition for all
scientific hypothesis (or indeed any at all)
"abiogenesis" is a term for a stipulated event. Asking for it to be
falsified is a bit like asking if Waterloo or sunsets can be falsified.
Now, leaving this category error aside and treating it as shorthand for
the process of finding out about abiogenesis, then this too isn't "a"
hypothesis. It is a research field. You could with equal right (or
non-right) claim that chemistry or physics are invalid scientific
hypothesis.
Even if one accepts falsificationism as a demarcation criterion, only
specific claims of specific theories are ever falsifiable. And that
holds of course also for hypotheses about abiogenesis. So you need to
identify one specific theory, and ask what exactly it says - only then
it makes sense to ask if it can be falsified.
One such thpery is e.g. the "Mica world" theory- as discusssed in
"Possible origin of life between mica sheets: does life imitate mica?"
by H G Hansma in the J Biomol Struct Dyn. 2013 Aug; 31(8): 888–895.
The general idea is that life originated between the sheets of
muscovite mica that protected the primitive precursor cells in the
absence of a membrane, and also provided energy.
Is it falsifiable? The paper states several predictions that can be
tested in laboratory settings, though it acknowledges that the
practicalities of the tests can be high. One prediction is e.g. that the
formose reaction will produce fewer products between mica sheets than in
solution, due to confinement effects. In that case, the author tried to
test this herself, though due to changes in personnel could not complete
the research. Another prediction is Mechanochemistry formation of that
bonds by the mechanical energy of moving mica sheets. This too can be
tested and measured, though again the sensitivity needed and he fact
that you want measurements from inside the sheets as well makes it not
trivial. So definitely falsifiable in principle, and also arguably in
practice.
Now, if the hypotheses passed sufficient tests to become a good
candidate for a possible pathway to life, can also the claim that it was
the actual pathway here on earth be falsified? Arguably yes, though the
answer is more complex. The hypothesis e.g. assumes that certain
conditions obtained on early earth. So if an abiogenesis theory requires
that temperatures did not exceed a certain point, but our best current
theories about early earth tell us that it was much hotter at the
critical period of time, then we have to abandon this specific
abiogenesis theory.
Not falsification in the sense of Popper, rather consistency checking
with other theories, but that is how in the real world (as opposed to
the philosopher Popper's university office) much of theory revision is
done.
Furthermore,falsification, to the extend that it works at all, assumes
that the theory in question is of the form of a universally quantified
sentence ("all swans are white"). That links them to the Humean problem
of induction, and from there to modus tollens as the one logically valid
way to reason with them.
But existential statements about unique events have a different logical
structure. So you either remove all of geography, history (including
natural history) and most of geology etc from science, you accept that
falsification isn't appropriate for this type of claim. From a logical
point of view, they are the exact opposite of universal statements, that
is they can;t be falsified, but they cam be verified.