dlzc wrote:
The Universe can very much be modelled as a fluid, it does not mean
there is an underlying fluid... other than the matter we see and
measure.

I say it's a big clue to something that might actually be underneath. If
it walks like a duck ..., etc.

Such a motion could result from our "stationary" position actually
moving away from "The Great Attractor". If all matter were generally
moving towards a single point, at a more-or-less constant velocity,
*we could not observe it*. No relaive motion.


Even the (in)famous Bullet Cluster is being sucked down this Cosmic
Drain Pipe.

Yousuf Khan