@DarkAudit there's a difference between knowing what a word meant to someone when they wrote it and limiting all interpretations of a concept to that which was available at the time of writing. As others have pointed out, it's stupid to say the 2nd amendment only applies to 18th century technology. If the same standard was applied to the first amendment, then it would only apply to movable type printing presses, and not radio, TV, or Internet.
Furthermore, the definition of words change, but the intent stays the same. What once was "consumption" is now "tuberculosis." Now it's Istanbul, not Constantinople. But one thing is constant - knowing the intent of a law (or an amendment) is more important. That's why "freedom of the press" now applies to all forms of communication and media, and not just a literal printing press. Because of the intent of those who wrote and ratified the amendment.