Conversation

Measured differences in how quickly the universe is expanding (leading to theories about repulsive gravity and "dark energy" [not dark matter]) can be explained by the universe spinning.

The observation that a majority of galaxies are spinning and oriented in the same direction also suggests the universe is spinning.

Could the expansion itself also be explained by the universe spinning?

Is there a center of the spinning? Or this a 4-dimensional spin?
https://mastodon.nl/@krisvdm/114343638657599651