Detecting design or intent in nature

[Surgenator]

Nope. The speed of light is a constant that is intrinsically tied to all of physics, e.g. Planck' constant, electrical charge, the mass of the electron.

This is yet another poor example since this is not at all parallel to your argument.

Pro tip: The term is "disjoint subset".

Any theory will ultimately rely on observed constants and not ones which are derived. Observation will always leave you with disjoint subsets because you can't observe it all. According to your logic, measuring the mass of protons in a lab on earth tells us nothing about the mass or protons in the Andromeda Galaxy. Maybe you've discovered the source of dark matter. Its not really an unknown particle, its just that protons on earth are a little light.

Do you see why I reject your thinking?

If the mass of the proton was different in another galaxy, stars will behave differently. We can observe how stars in other galaxies behave. Plus, you won't get the required density profile for dark matter is you just change the proton mass.