Example (pertaining to this discussion):
If everything was created by nature without Intelligent Design – If man was created by nature and acts only through nature – Nothing man creates has Intelligent Design because it is natural.
Why do you postulate this? If man is the first Intelligence to arise, why wouldn't anything he created not be intelligently designed? After all, you are claiming that God is the first Intelligence to arise and everything He creates is intelligently designed.
If man does have Intelligence and it was given to him by nature – nature must have Intelligence built into it – Since nature created everything – What is nature?
Not necessarily. If you postulate God, then God's intelligence must have arisen naturally (it wasn't bestowed by anyone else, was it?). You are then claiming that God must recognize nature as being intelligent (God's god?). The natural occurrence of intelligence does not, therefore, imply the intelligence of nature.