"For that matter, can you provide evidence of the limits of the human mind?"
I'll try...
In theory everything we need to know we can learn.
I doubt that this theory is correct, simply because the amount of information stored in our universe in FINITE, not INFINITE.
To retain a piece of knowledge an electron in our brain (or in a computer) must be elevated to a higher potential. That is, some amount of energy must be added to it. In other words, storage of information requires energy. Our universe has only finite amount of energy in it (that is if we stick to the Big Bang theory, of course). So this means it can only store a finite amount of information. A finite amount of KNOWLEDGE. Same thing goes for utilizing the knowledge, thinking process I guess. It also needs a certain amount of energy (which is limited in our universe).
Don't get me wrong, we are far, far away from reaching our limit, however the fact is that in theory that limit exists. Kind of like in billions of years the Sun will die and so is most of life on earth including humans. That's our limit of surviving in this solar system. I won't worry about it, my kids and grand kids won't worry about it, but the fact is - it exists.
As far as me saying that god is perfect, what I meant is that he is all knowing, possesing the ultimate knowledge. To me that is perfection. As I mentioned in my first reply, I consider G-d as an eternal unity, eternal energy, (spirit). Physics prove that it takes energy to store knowledge (information). That means that god has access to all knowledge stored in our universe at any given moment of time or any place there in. That's perfect.