Detecting design or intent in nature

[Heywood]

I don't have to assume anything. The only examples that exist (apart from human designs, borrowing principles from nature) such as you, me, and every other animal that has a brain, are the results of evolution.

You are assuming this evolutionary system did not require an intellect to design it or be a component of it without any reason.

Intellect create evolutionary systems, we know this to be a fact and we have plenty of observations of such. We have 0, zilch, nada....not even one iota of an observation of an evolutionary system coming into existence sans intellect. You are arguing that the evolutionary system which created us is some sort of special case solely on an assumption that intellects can only come into existence via evolution......yet you admit that intellects can beget intellects so the assumption upon which you base your position is false.