We know the contrivances of human beings whenever we see them. If I should find a bicycle assembled, I wouldn’t have to rock my head trying to discover its source. Everyone who has seen a bicycle knows to what ends they are produced and by whom. We do not have the same knowledge for things occurring in nature. I cannot tell, when I meet an elephant that there was a purposeful designer who wanted it to crash plants.
To say something happened by chance, does not rule out a designer. It could have been experiment and this result was a chance result. It was never planned.
The theist has no reason to limit the being of the universe to this
The only possible explanation for the structure is that it was designed by an intelligent being, not some random physical process.
For what is intelligence? It includes
the capacity for logic, understanding, self-awareness, learning, emotional knowledge, reasoning, planning, creativity, and problem solving
many properties which would rule out the god of theism; an all knowing god can’t learn, reason nor plan. Such a god can’t be creative. We are told, for example if you believe the Abrahamic religions, that god said and it was. In a scenario such as this, the god need only wish and it is.
The question of how did the universe come to be is not made easier in supposing an intelligent designer. I could grant you a designer and ask why must we stop at one designer? If one argues from man made things to the universe, then we see that many things have components built by different people; someone a roof, someone windows and doors and another walls. So, then, we can be certain there is no contradiction in saying there is a designer for trees, another for elephants and another for fish and for all other million of things that exist.
I contend this blogger has not demonstrated his claim.