Dear Derek,

Thank you for your comments.

What do you mean by 'this follows from my previous post' ? What follows ?

If a multiverse is admitted and people can make a theoretical study of what happens with physics when constants are changed it will only show that some combinations of physical constants will not lead to a Universe like ours. E.g. formation of galaxies.

There is this anthropic principle based on an older study of Paul Dirac on the physical constants. Note in addition, changes in physical constants are not changes in physical law by necessity. If I have a different Planck constant there is still the possibility to have for the energy of the photon with frequency, f,

E=hf.

This is a different Universe form ours but also from the one where E is not equal to hf. One may wonder if this is possible at all.

Indeed, agnosticism at every solid angle of the (radio)telescope observation. But we only observe one universe. The bi-sector mirror matter hypothesis is still in a single universe. In the mirror sector there still is e.g.  E=hf and, c=300000000 m/s etc are shared between sector and mirror sector.

Analytic philosophy was there in the first place to study the language of metaphysics. E.g. the language of Hegel on the Absolute and of Bradly a Hegelian in the UK. Russell and Moore started the analytical 'school' in order to study the language of metaphysics. Wittgenstein went as far as to reject all violations of the language 'border' any credibility.

However, in case of cosmology and fundamental physics we need to step into the dark to see if such a language border is crossed. Analytical philosophy is therefore not attacked by scientific development. It is an instrument of exploration.

Yours
Han