array9

What if 'Like particles' attract, 'unlike particles' repel


We are used to the opposite, where small scale stability forms, and the large scale is boring.  Or at least if one starts off uniformly or randomly.

But with this different type of force and say two different types of particles, we may get something very different, namely local clumping and global accelerating expansion.

Sounds like the universe under a modified form of gravity, ie two types of particle, rather than one.

You would not find anti-gravity locally, but whole galacies might be.  You might get the odd global flow in the long term as well.

Might your spiral arms be pushed in a little as well, in the effort to push away other galcies into expansion.

Fun to simulate.

Bang goes inflation and things dark

Martin