That's an interesting question, Fiery. According to Ray Kurzweil, the answer is yes. My instinct is no, but I think I might change my mind if we were closer to being able to create a robot that even approaches the complexity of a living being.
And you could see a sperm cell's brain with nothing more complicated than a regular optical microscope if it had one. Trust me, they don't have brains. I came up with that as reductio ad absurdum for Key, who knows beyond a doubt that I'm a dreaded inside-the-box thinker for not understanding that jellyfish so obviously have a different kind of brain.