Sure why not. If you write it I'll read it.
If its not too much trouble could you put in some actual evidence? That has been in short supply
Thanks in advance
I'll try to keep it short, but there's a lot to say, so here we go.
The Universe is described by a lot of parameters, for example:
- the strength of gravity, electromagnetism, the weak and strong nuclear force
- the mass of various elementary particles
- the speed of light
- the amount of dark matter vs dark energy vs normal matter vs radiation
- the speed of the expansion of the Universe
- the presence and abundance and suitability for life in the Universe
etc
The claim is that, for example, if the relationship between the four know natural forces were much different from what they are, molecules and chemistry and complex structures could not form. Or that if the amount of dark energy was much larger, the Universe would expand too rapidly for large-scale structures to form. There are many claims like this, and it can indeed seem like all parameters must be what they are for the Universe to look the way it looks.
To claim that any parameter in the Universe is fine-tuned, is to claim that you know what the probability distribution of every parameter is.
It is to claim that of all possible values, you know what possible values are, and how likely the actual value is within that range.
For example, as long as you don't know how likely our Universe's specific weak-nuclear-force-strength is among the possible values it could have had, you cannot say that the current value is unlikely or fine tuned.
And, as long as you don't know which other value ranges of each constant that could still have produced a Universe suited for life advanced enough to ponder this question, you get even further away from claiming that it is fine tuned.
Would life be able to form if light speed was any different from what it is? What is the probability that the light speed happened to get the value it has? Is "God" or "random" the only two options? What may be the underlying cause for the speed of light being just what it is? Is there a cause for this, or would any value be equally probable, requiring a fine-tuner to get it just right?
I'll give an example of a non-random universal parameter. Pi. It's 3.14159....etc. One could claim that if Pi was anything different, say 3.5 or 2.8, then the circumference of a circle would not add up in relation to its diameter. Therefore circles and spheres would be impossible, therefore Earth could not be round, it would have gaps and holes or overlapping terrain, and therefore life could not exist in a Universe where Pi was 3.5 or 2.8. Therefore, it must be God's work that Pi is exactly what it is, because if it was random, the probability of it getting exactly this infinite non-recurring decimal value, would be infinitely small.
BUT - Pi is not the cause of circles and spheres. It is a result. The reason for Pi being what it is, is a simple geometric relationship. It is not possible to conceive any Universe where Pi could be anything different from what it is. So Pi is not fine-tuned to create spherical objects in space. The probability of Pi being exactly what it is, is 100%.
To claim that you know that any parameter or constant in the Universe is fine tuned, is to claim that you know the underlying cause, so that you know whether it is random or a simple necessary geometric result of some 1-dimensional superstrings or whatever. As long as we don't know the underlying cause or mechanism that made each constant what it is, we cannot claim that it is fine tuned.
It's like the puddle lying in a ditch and figuring out that the ditch is fine-tuned for its existence. If the ditch had any other shape, it would not fit the puddle as we know it. The chance that any random ditch shape should exactly fit the puddle, is so slim that the ditch must be intelligently fine-tuned to fit the puddle perfectly.
So to recap, to claim that any parameter in the Universe is fine tuned is to claim that:
- you know the underlying mechanism or cause of the value
- you know that this mechanism is either random or fine-tuned, and not similar to the geometric necessity of Pi being what it is
- you know what range of values it possibly could have had
- you know the probability distribution within that range
- you know which subrange within that range could have supported intelligent life
- you know the probability distribution of which possible/probable values of that parameter would most likely have been able to support intelligent life (ie. if the value that would be most suited for life is the most probable value, or an unlikely value)
- you therefore know that the value, if not-fine-tuned-by-an-intelligent-being, would have an extremely small or zero probability of happening in a natural Universe
I don't think you can claim to know
any of these things, so claiming the Universe must be fine-tuned by an intelligent being, is completely unsubstantiated.
I'd also like to add that this is now debunked regardless of any multipe Universes existing, BUT if many Universes exist and their values for each parameter vary, then we shouldn't be surprised that our Universe is among those that do support our existence in it. But as multiple Universes are not substantiated, my argument does not require the existence of other Universes.
The point is that we cannot claim that anything is fine-tuned when we don't know anything about the possible or probable values of each parameter, the underlying causes for their value, or what values are needed to support intelligent life.