uniformity of dark energy distribution

[kurious]

The question that follows assumes that there can be energy
conservation in general relativity:
Dark energy is said to have a uniform energy distribution in space.But
how can the distribution be uniform if dark energy is created from
some other energy source, and energy sources such as galaxies and the
microwave background do not have a perfectly uniform distribution, and
their non-uniform distribution means also that energy sources such as
vacuum particles cannot be uniformly distributed?

[mathman]

if dark energy is created from some other energy source

It is highly unlikely. Dark energy accounts for about 70% of the total energy-mass of the universe. It can't come from some other source.

[kurious]

Dark energy can come from some other source provided that source is all the other matter in the universe and that in the past there was less dark energy and more of the other matter.Not a problem.This means that other matter is currently decreasing -
look at the cmbr photons - they are losing energy, gravity is getting weaker between galaxies - gravitons are losing energy.