Argument from design
many people refute the idea of a designer for our Universe by arguing that that designer, being surely complex, would require a designer.
So, the argument from design seems to explain a mystery by adding more unexplained things.
W.Lane Craig responds that if we follow the logic of those people, we must find the explanation for the designer, and the explanation for the designer of the designer, ect...
the explanation of the explanantion of the explantion ad infinitum, which is impossible.
thus, stating an unexplained designer isn't incorrect to Craig.
See his video on youtube which is intilted "who design the designer?"
What do you think of this strange Craig's answer?