| > If space was flat, which is your presumption, those would both be 1/r^2. You forgot about red shift, which also diminishes the source, so, very very roughly, it's 1/r^3. > Requires simultaneous behaviour from all directions at great distances while also not having that behaviour here, and also having us being really close to the physical center of this phenomenon rather than off to one side — even a fraction of a percent would be easily noticeable given the CMB is so close to the same in all directions; we see a red/blue-shift dipole from us moving at 370-ish km/s relative to it's comoving rest frame, so that's the scale of fractional away-from-perfect-centre you'd have to explain. When we are in a fog, we always in the center of the visible area. With such larger distances, the probability of hitting something for a photon is very near to 1, even when interstellar space is extremely clear (hard to calculate exact numbers for me). > You should be able to tell that's wrong by it being an unbounded function, when probability stops at 1. When we see direct light, then probability is below 1. When don't, then it's 1. :-/ > You should look up Olber's paradox. You should look at the picture of the darkest spot on the sky: it's full of stars. :-/ https://en.wikipedia.org/wiki/Hubble_Ultra-Deep_Field |