POVphysics

Forgive me. I didn't mean to sound confrontational. To me, the building blocks of matter are more like an exquisite puzzle. Actually, now that I think about the question you were answering, "clump" is a good description to use. I have never heard of dark matter behaving like anything other than a fluid that is non interactive with charges or photons. If I were to hazard a guess at what dark matter might be, my answer would be that, probably before the leptogenesis and baryogenesis epochs of the big bang, there might have been a massive energy dump into extremely small non interacting particles, similar to neutrinos, but a lot smaller.

Why do you refer to something that is so amazing and intricate as ... "clumping"? I think it's rather amazing that there are positively charged nuclei at all. You have the strong force overcoming the coulomb force. There have to be some neutrons in their for larger nuclei, or the nucleus will undergo fission. The fact that the positive nucleus is an integer of 1.6x10^-19 coulombs while electrons have a charge - 1.6x10^-19 coulombs, (equal and opposite charge) in spite of their existence at different stages of the big bang seems amazing. Then, you have the periodic table of 120 elements (I think). If it wasn't for the weak force, there might be more elements. All of the atoms that make up the Periodic table engage in "chemistry" which is nothing short of amazing! You start getting molecules in such large quantities, and they interact together based on Coulomb charges. I wouldn't expect to get "clumping" until we get up to the electrostatic charges on materials that are a great deal larger. I dunno, maybe you meant "clumping" in a more affectionate way.