You will never get an answer to your question, because not even the handful of scientists who subscribe to; fine tuning/intelligent design, can define what it is and devise a falsifiable test to determine when it is present.
You are wrong, recently the speed of light was disproved as a constant because it changes in quantum vacuum.
Speed of Light May Not Be Constant, Physicists Say | Cosmology & Astronomy
Here is the Definition of Fine Tuning
Fine-tuned Universe - Wikipedia, the free encyclopedia
https://www.youtube.com/watch?v=Q3jvfvho3CE
Here are the facts on the fine-tuning:
Life has certain minimal requirements;
long-term stable source of energy, a large number of different chemical elements, an element that can serve as a hub for joining together other elements into compounds, etc.
In order to meet these minimal requirements, the physical constants, (such as the gravitational constant), and the ratios between physical constants, need to be withing a narrow range of values in order to support the minimal requirements for life of any kind.
Slight changes to any of the physical constants, or to the rations between the constants, will result in a universe inhospitable to life.
The range of possible ranges over 70 orders of magnitude.
The constants are selected by whoever creates the universe. They are not determined by physical laws. And the extreme probabilities involved required put the fine-tuning beyond the reach of chance.
Although each individual selection of constants and ratios is as unlikely as any other selection, the vast majority of these possibilities do not support the minimal requirements of life of any kind. (In the same way as any hand of 5 cards that is dealt is as likely as any other, but you are overwhelmingly likely NOT to get a royal flush. In our case, a royal flush is a life-permitting universe).
*Examples of finely-tuned constants*
Here are a couple of examples of the fine-tuning. Craig only gave one example in the debate and didnt explain how changes to the constant would affect the minimal requirements for life. But Bradley does explain it, and he is a professional research scientist, so he is speaking about things he worked in his polymer research lab. (He was the director)
a) The strong force: (the force that binds nucleons (= protons and neutrons) together in nucleus, by means of meson exchange)
if the strong force constant were 2% stronger, there would be no stable hydrogen, no long-lived stars, no hydrogen containing compounds. This is because the single proton in hydrogen would want to stick to something else so badly that there would be no hydrogen left!
if the strong force constant were 5% weaker, there would be no stable stars, few (if any) elements besides hydrogen. This is because you would be able to build up the nuclei of the heavier elements, which contain more than 1 proton.
So, whether you adjust the strong force up or down, you lose stars than can serve as long-term sources of stable energy, or you lose chemical diversity, which is necessary to make beings that can perform the minimal requirements of living beings. (see below)
b) The conversion of beryllium to carbon, and carbon to oxygen
Life requires carbon in order to serve as the hub for complex molecules, but it also requires oxygen in order to create water.
Carbon is like the hub wheel in a tinker toy set: you can bind other elements together to more complicated molecules (e.g. carbon-based life), but the bonds are not so tight that they cant be broken down again later to make something else.
The carbon resonance level is determined by two constants: the strong force and electromagnetic force.
If you mess with these forces even slightly, you either lose the carbon or the oxygen.
Either way, youve got no life of any conceivable kind.