The panelists reiterated the relevant discoveries that were new in 2004: growing organs in another location of recipient's own body (whether human or animal) -- while those discoveries weren't about growing a robot from biological cells, that could potentially be a potential future use. Modeling robots after roaches, rats, or other small animals that can pass through narrow spaces -- for example, to lay computer cables. Attaching sensors to a swarm of very small, fast, disposable robots the size of a grain of rice. What the state of artificial intelligence looked like in 2004, years before the significant advances made by neural nets -- not very promising. Our panelists thought that since our brain is wet and analog, we won't be able to simulate it in digital systems. Researchers are inspired to generate power from biological sources, because batteries running out are a common problem with robots, whereas a human body can do a whole lot on just a peanut butter sandwich.