with matter & energy "out of phase" with our universe ?
We could "see" the effect but not the source.
The things that keep me up at night...
Astronomers, astrophysicists and governments love to cling to theories annd beliefs until new evidence absolutely proves them wrong and even then it can take decades for them to be accepted. We only need to look back in history to see how hard the scientific and cultural establishment fought the idea of a heliocentric solar system where the Earth orbits the Sun. They imprisoned and burned people alive over it.
Here is some reading on the topic: https://www.wired.com/2012/06/famous-persecuted-scientists/