Originally Posted by
wogoga
In the same way, you cannot argue to the impossibility that under certain conditions (e.g. high densities), photons with similar properties exchange energy and momentum, in order to become mutually coherent or to align propagation direction.
First off, I'm not arguing that photons do not interact. I'm arguing that the interaction which exists (and which we understand) cannot account for what you want it to do.
Secondly, in regards to aligning their propagation direction, we know that this cannot happen because it would violate momentum and/or energy conservation.
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And even in mainstream physics, interaction of photons is a reasonable hypothesis:
Quite so. But again, the fact that they interact (weakly) doesn't mean that they interact the way that you want them to. They do not.