Unless time is a construct and the infinitely complex source doesn't exist within it - then there's no loop, because there's no causal linking. Quantum physics exists square in the middle of such an idea, linking space and time together as two sides of the same coin, and dissociating causality from witnessed events.
Even so, the idea that something cannot have spontaneously come to be because it is too complex, therefore something infinitely and mind boggling more complex must have created it does not appeal to me even if the entity exists outside of our quantum space time continuum. I am not positing that we wer not created, just stating that i do not like the logic.