How much pain can atheists withstand ?

[The Architect Of Fate]

OK for now let's use an analogy, let's say you have 10000 years of free time to design a human being or a fly, you have all the resources of nature and the latest technology. Odds are you're going to fail (not certain but very very probable). Since a reasonablly intelligent being (you) can't create things like human beings, the origin of human beings is likely a much more intelligent agent. 

You may say nature or evolution, but nature doesn't do anything because it's not a personal agent, it doesn't have a will.

I can think of more examples to clarify this, generally it takes work and finesse to design things, you don't wait for your laptop to turn on by itself and write smart programs, you should take action and intervene. Likewise, some agent should take action and intervene in order to start life and nature, etc. So it's vanishingly unlikely that we came out of something blind like nature

Arguments from incredulity. Also a false analogy. Also, you are begging the question.

Also saying humans make and design stuff doesn't make non-man-made stuff designed. You can say human-made stuff is designed anything else is unjustified.