Hello, 73% is dark ENERGY not matter! You continue to confuse the two of them!!!

The bottom line still is that ONLY 4% of the Universe is visible! Therefore, all of the laws of the visible (observable) scientific method are only 4% accurate at best...

Yes, dark energy and matter are not fully understood, but they could help explain some of the visible phenomenon that still defies most explanations like the expansion of the visible Universe, spiral rotation of galaxies, etc...

-wirelessguru1
The Invisible Universe