gnostic
The Lost One
You don’t have to test them directly (nor indirectly) all you have to do is find a phenomena that would be better explained by postulating a multiverse than any of their competing explanations.
(that would be enough to put the multiverse in “probable” territory)
As an analogy, you don’t have to test that life can come from none life in order to conclude that abiogenesis took place at some point tin the past.
It is a fact that life exist
And postulating abiogenesis is demonstrably a better alternative that say “life in this planet is eternal and has always existed” (implying that there was not a fisrt life)
In other words you don’t have to test and show that abiogenesis is possible, all you have to do is show that abiogenesis (natural or not) is a better explanation than “life has always existed”
So if you find something that would be better explained by postulating a multiverse than with any other alternative, then you would have a good solid and scientific case for a multiverse.
I do understand what you are saying about having a good model that explain a particular phenomena, whether the phenomena be that of Abiogenesis or that of the Multiverse...that the explanations be “consistent” and “logical”.
However, to re-quote the last paragraph above, and highlighting the portion I want you focus on - the larger font size portion...
So if you find something that would be better explained by postulating a multiverse than with any other alternative, then you would have a good solid AND SCIENTIFIC CASE for a multiverse.
...there is no “scientific” case, because you need to understand what term “scientific” mean.
The term “scientific”, is closely related to 3 other terms: “falsifiable”, “falsifiability”, “falsification”.
What FALSIFIABILITY means, is “the ability to test and to refute” any idea, any concept, any model, any explanation, any prediction, any “potential solution”, etc. Let’s just shorten those “any ...” to just “any model”.
So if you have “no ability to test” model or “no ability to refute” a model, then the model is “unfalsifiable”, and therefore “UNSCIENTIFIC”.
How you would have “the ability to test and to refute” any model: the model of hypothesis or the model within a theory, must contain or include ways (eg instructions) a scientist or team of scientists to test a model, is through “observations”, and the only observations we are talking about in regarding to science, are:
- EVIDENCE, of which there are two basic ways of obtaining evidence. Examples:
- how, where or when to find the evidence in the field,
- how to test the model in the laboratory, so the observations would be the experiments, or the test results of experiments.)
- DATA, are information that you have obtained from the evidence, information like quantities, measurements, the physical properties of the observed phenomena.
So EVIDENCE & DATA are the “testable observations” needed to satisfy the requirements of any model of being “Falsifiable” and the Scientific Method, and therefore “SCIENTIFIC”.
If you have truly read the different models or different versions of Abiogenesis, you would know that “some parts” of Abiogenesis are already falsifiable, because there have already been some evidence and some experiments.
Yes, we already know that “life already exist on Earth”, but that’s not good enough for any Abiogenesis models.
If you actually read these different models to Abiogenesis, they all have 3 or 4 things in common in these different models: every cells contained the following biological macromolecules (which means “large molecules”):
- PROTEINS, as there 23 different types of amino acids, there are thousands of different combinations of how amino acids can be chain together into some forms of proteins, proteins, to form either tissues or to form enzymes.
- NUCLEIC ACIDS (eg RNA, DNA), are made of numbers of different types of organic molecules, eg there are 2 types of sugars - ribose sugars to form a single strand or helix of nucleotide, deoxyribose sugar that form double helixes of nucleotide, both RNA & DNA have each 4 different base molecules (or 4 nucleobases) in their respective nucleotides.
- CARBOHYDRATES, of which there are many types of carbohydrates, and therefore, there are many functions of carbohydrates, which I have already mentioned two of them in nucleic acid examples (ribose & deoxyribose sugars), but the other common purposes or properties of carbohydrates, such as glucose for animals and starch in plants, are the energy sources for sustaining life, or cellulose that form the cell walls of every plants, etc..
- LIPIDS, have many functions, but molecularly, lipids are made from fatty acids. Lipids often form the membranes, like around the cells, or another common function for lipids are to store energy (carbohydrates).
The organic matters that were found in meteorites, or the experiments of Miller and Urey, or that of Jan Oro, demonstrate that Abiogenesis models are falsifiable, but there are actual observations of the evidence.
So, parts of Abiogenesis are already “scientific”. The same cannot be said about any of the models of Multiverse.
Multiverse was actually developed from the earlier models of the Big Bang theory.
Some theoretical physicists (Alan Guth, Andrei Linde, Alexei Starobinsky & Paul Steinhardt) try to solve the problems in the early 1980s that exist in the 1948 model of the BB, eg the Flatness problem, the Horizon problem, the problem with there being no magnetic monopole. They each independently developed that own models of the Inflationary model.
Basically, the Inflationary model explain that earlier, within a fraction of second after the Big Bang, the universe underwent exponential expansion, and these models would explain not only the size of the universe, but also how large structures in the universe would form later.
The Multiverse model was developed from this model on cosmic inflation, by Guth and Linde in the early 1990s, but Steinhardt had rejected.
Multiverse only worked theoretically, as in the solutions only exist in the maths, but it cannot be observed.
Abiogenesis fits the bill of being “scientific”, because some parts have already been falsifiable and more importantly tested, but not the Multiverse.
You need to understand what they mean by scientific.
It is more than explanations being solid; scientific is about the explanations being testable and falsifiable.