Of course, I am skeptical, but it seems no less believable than the idea of “dark energy”.
I agree, but consider that whatever “dark energy” is, it must behave in a wavelike manner and must consist of certain frequencies, perhaps an infinite number of wave-frequencies.
Energy is an “expression” of the wave function. A photon travels as a wave but becomes a unit of energy when measured. By that logic the wave function must be the fundamental “medium” from which existence becomes explicate. Bohm called this medium “pure potential” in which “implications” form, which then become expressed (explicate) in reality.
Perhaps this Dark Energy is the unused waveforms (the universal potential) which is not measurable (collapsable as measurable energy) by our current technology. We have a chart of electro-magnetic frequencies (wave forms) from deep infrared to high ultraviolet, but is that chart complete?
As far as I know, we are unable to measure the energy of “virtual particles” able to travel at superluminal speeds. But we know they exist, because occasionally they pop in and out of existence (perhaps slowed down by wave interference) and enter our reality, but invariably have an extremely short life span before disintegrating, because they cannot exist at the luminal speed of our reality.