What’s your sense about SETI or the Fermi paradox, if a signal becomes so vastly diluted just within our solar system?
I’m sure the SETI people have thought about this and made various calculations, but with the inverse square law and the vastness of space, maybe “needle in a haystack” is optimistic.
Is it the wrong model to think that anything but maybe a galaxy scale civilization is just going to have it’s signals more or less totally dissolved into seemingly random cosmic fluctuations, relative to our sensors/receivers at least?