lucaspa
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Cantuar said:Lucaspa: You are at the next layer. The question is: why does the UNIVERSE exist? Answer: Because God created it. Next question: why did God create the universe. Possible answer: Because it pleased God to do so. Next question: Why did it please God to do so?
OK, we left science behind some time ago, didn't we? I mean, getting into the personal preference of a hypothetical deity doesn't sound like something that's ever going to make it into Science or Nature.
Not now when we don't have the data or tools to even say there IS a deity. But you wouldn't write the article NOW. You would only write it AFTER you answer the first two layers. And then you would have to have the tools to get empirical data on the question.
Depends. I assume that this multi-universe business came out of (or at least via) cosmology theory, not just directly out of the recesses of someone's imagination.
It came out of attempts to deal with the second question: why does the universe have this order rather than some other order? The weak Anthropic Principle says the universe has this order because it is the order that allows us to be here to observe it. Hypothesizing an infinite number of universes each with different order guarantees that, by chance, ONE of them will have the order we see.
Theories can be falsified by experiment, but they can also be shown to be incorrect in themselves. My PhD research was pure theory, no experiment at all, but it could still have been shown to be incorrect by someone going through it and finding mistakes in the mathematics.
Isn't testing to see if the math is correct an experiment to attempt to falsify the theory?
The multi-universe scenario, even if not testable by experiment (that we know of), could be shown to be scientifically impossible if the theory itself is shown to be incorrect.
Uh, aren't all falsified theories "scientifically impossible if the theory is shown to be incorrect"? Isn't that what we are saying about ID adn creationism?
I think what you meant to say "if there is a mathematical error such that there is a mathematical contradiction"
Pure math theories are also tested by comparing what the math says the universe should look like to the real universe. This is why Einstein put lambda in his equations of relativity. By themselves, the first equations showed a universe collapsing due to gravity. Therefore they were false. Lambda -- the cosmological constant -- was there as a repulsive force to keep this from happening. Only then did the equations match the universe we see.
String Theory is in this mode now. Various forms of string theory have been falsified as the equations are not consistent with the universe we observe.
Scientifically we're that much further forward if we know which theories are self-consistent and which aren't.
What do you mean by "self-consistent"? Do you mean the math is mathematically correct? Or do you mean that the mathematical theory is consistent with the universe we observe? Either one is an experimental test of the theory.
Although while I was doing my PhD, I and my colleagues were forever coming up against the opinion of experimental scientist that theoretical research was a total waste of space,
Nearly ALL hypotheses/theories are "theoretical" at the beginning. That is, they are leaps of imagination that, at the moment of conception, do not have ties to experiment. The FIRST test of a new hypothesis (by the hypothesizer) is alwasy to test it against known data. Most hypotheses die right there as experiments already done (but perhaps not known to the hypothesizer) falsify it.
("I'm not having some thoretician tell me what I can't do..." - sigh -).
In that sense, they are right.
"1. All our theory, ideas, preconceptions, instincts, and prejudices about how things logically ought to be, how they in all fairness ought to be, or how we would prefer them to be, must be tested against external reality --what they *really* are. How do we determine what they really are? Through direct experience of the universe itself. " In the way you are using it, self-consistency falls under "how things logically ought to be". That doesn't mean they are.
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