The Cosmos exists as the constraint on possibility. It emerges not from fundamental intentionality nor from fundamental mechanistic cause but from the fundamental vagueness of unorganised free potential. An essential state of everythingness that then must start to self-cancel until it becomes reduced to some coherently organised somethingness. A realm of inevitable structure. — apokrisis

Great! 'Everything' is a necessity since there is no design point for anything specific.

Note --- I interpret First Cause to be logically & necessarily eternal & intentional Essence instead of temporal & accidental Substance. — Gnomon

I am arguing against any strong notion of first cause.

Take the example of spontaneous symmetry breaking. A pencil balanced on its point. A ball resting perfectly still on the peak of a dome.

These are states of perfect potentiality that are also critically unstable. Poised and inevitably about to be broken. The pencil will fall. The ball will roll down. The direction is random, but the outcome is certain.

And what is the cause of the fall or the roll? Absolutely anything. The smallest vibration or the least random knock from some air molecule. The first cause must exist. But also it could have been anything. So nothing was very special about it.

That would be the standard physical example of the kind causal situation I am talking about. What comes first is just the poised tension of a potential so general that absolutely any fluctuation could send it down the hill towards its inevitable destiny.