Since they witnessed the progression from knives and swords to powder weapons, I find it difficult to believe that they did not envision some future weapons more destructive than what they were used to. For the sake of argument, we'll assume that the liberals are right, for once. Let's say that the founding fathers did not envision automatic weapons, bombs, and nuclear devices. Perhaps that is why they did not specify automatic weapons in the Constitution. In fact, they did not specify guns.
Knives are arms.
Swords are arms. Sticks are arms. Thus, it is illegal to regulate anything from the length of my knife to the size of my clip to the manner in which my gun shoots. The founding fathers were probably not familiar with the World Wide Web, either. Our first objective should therefore be, to leave open to him all the avenues of truth.