Good-day to you
ItAintNecessarilySo, I thank you for offering a critique of my original post!
I read it with interest. Here is my response, unfortunately its rather long and wordy owing to the fact that to give this highly complicated topic the proper justice deserved, it can't be dealt with in trite sound-bites (much as I'd like to do this). I hope you aren't bothered about this, it is necessarily long!
I had to divide it into parts:
Deities are not required to answer the fine tuning argument.
Firstly, I never contended nor implied the existence of a supreme deity is
required to explain the fine-tuning of the constants (whether relevant or marginal parameters) and initial conditions of our universe. The word "required" featured nowhere in my argument.
Rather, I expressed my personal conviction that to postulate an Intelligence outside spacetime as the reason for the existence of our fortunate universe -
which exhibits signs of finely tuned parameters lying within an exceedingly narrow range necessary for complexity and carbon-based life to emerge - is an entirely defensible hypothesis (even if it is not a scientifically testable one, as I freely concede, owing to the fact it reaches for an answer beyond the laws of physics).
Now, onto your three points....
One possibility is that there is no fine tuning - that only this assortment of physical constants is possible.
Here you are inviting me to accept a speculative argument based upon an unprovable assumption of physical necessity, which is essentially premised on "hope": the hope that a Newton or Einstein level genius will someday come onto the scene in the future and reveal how we might make currently unverifiable and implausible hoped-for-physics....
plausible?
That's a pretty picture and nice dream but I'm afraid
its not a sufficiently convincing argument to make me want to rethink my position and question the original premises underlying it - for the simple reason that
no mechanism of physical necessity actually exists until someone can find a realistic way of making it work mathematically and then empirically as a consequence of a testable prediction, which no one can do at present for the fine-tuning problems so identified, as I'm sure you must agree?
There is simply no evidence you can point to mandating the '
fine structure constant' or the '
cosmological constant' or the '
higgs field' are compelled by physical necessity to take the absolutely tiny, knife-edge positive/non-zero values they actually have (which turn out to be essential for us to exist and ask these very questions), such that they couldn't possibly be otherwise. If you are in possession of new evidence suggestive of this, then you must be the greatest living theoretical physicist and I'm very curious to know why you are yet to receive the Nobel Prize for such a monumental discovery!
Precluding that eventuality, your argument here rests on a moot point, in my humble estimation. It doesn't get us anywhere. Science-fiction novels envision all sorts of futuristic physics and that's why they are fiction. We can only work with the data and the models we have.
Cosmologists can, on the other hand, actually use the laws of physics as we understand them to model simulations of counterfactual universes on supercomputers and a consistent finding is that the range of constants where the universe
isn't an undifferentiated cloud of hydrogen and helium, devoid of the complexity required to ultimately spawn a universe with intelligent life, is exceedingly low.
Those unnatural odds demand an explanation and the argument in question merely evades the conundrum altogether - it's a cop-out, in other words.
(continued.....)