Big D don’t worry.... In FF10 they bluntly tell the player that Jecht is Tidus father in the first 30 minutes or so.
I would have rathered a vague relationship like FF8's but FF10 just spits it out. As for Macbeth; read it and try to see where the theme occurs. Note: it is very subconscious and in a statistical measure 50% of people discount it and 50 % believe undeniably that Macbeth one of the murderers. Amazing isn't
it.
