Maybe dark matter is not made up of heavy particles after all

[johncave]

1. It's dark mass, not dark matter

Physicists are starting to realize the notions of dark matter and the dark matter particle are incorrect. They are referring to the mass which fills 'empty' space as the 'dark mass' in order to distinguish it from the baggage associated with dark matter.

'Dark Energy/Dark Mass: The Slient Truth'
https://tienzengong.wordpress.com/2015/04/22/dark-energydark-mass-the-silent-truth/

"That is, all that we are certain about [is] the dark mass, not dark matter, let alone to say about the dark 'particle'."

Particles of matter move through and displace the dark mass, including 'particles' as large as galaxies and galaxy clusters.

The Milky Way moves through and curves spacetime.

The Milky Way moves through and displaces the dark mass.

The state of displacement of the dark mass is curved spacetime.