The Principle of Contingent Causation: The Impossibility of Infinite Regress.

[Belacqua]

Please quote where I said what a "First Cause would have to be like". 

Here is what you said in an earlier post:

There is no reason to posit any sort of First Cause UNTIL we have some data from the environment EXTERNAL to this universe. 
All you're doing is slapping a principle you think you know from a tiny part of this universe onto an environment you know absolutely nothing about.
There is no reason to consider ANY origin theories until there is data.

Please correct me if I'm wrong, but you appear to be saying that we must have data to posit any sort of First Cause. 

And that until there is such data, we have no reason to consider any origin theories. 

The idea that a First Cause is something for which there would be data is an opinion about what a First Cause would have to be like. Platonists, among many others, disagree with you.

Again, I'm not saying your beliefs are bad ones. Lots of people these days think that we must have data to believe something.