Michelson-Morley's tests were interpreted based on a particle model for light long time ago. This mistake caused an illusion of an ether wind effect in the arm transverse to light motion in these tests. By using a more relevant interpretation, based on the wave model for light instead, we can see that this transverse effect is not real. To cover up for this error the absurd concept dilation of time was invented. So, Michelson's mistake long time ago gave us multiple time concepts and individual ageing and absurd physics. We need only ONE time concept.
This important mistake is described in the attached article. Take a look and judge by yourself.
John-Erik