Hi, just something I was thinking of. Suppose someone in the olden days, watched a legitimate ryu in practice (just like modern day DVD watching or book reading), then went on to practice on his own, and started his own style (which came from watching and self-practice). Since there was no Bullshido or Internet at that time, people couldn't expose fraud masters. And since this guy watched legitimate ryu in action before, what he created will definitely look combat-effective. And then his style got passed down as a legitimate Koryu today in modern-time. Is this possible? I mean, in modern time we can trace-back a Koryu with its scroll and such. But how can we actually trace-back what we traced back?