Originally posted by browniebaobao:
so people say pple with same surname cannot get
married...considered crap la hor? since pple with diff surname
might be from same clan or family in the past..
Thought this was coming, that's why added "more than three
thousand years ago". 
With that time frame in mind, it becomes rather pointless to argue
whether people with different surnames are actually related or not
because there really isn't any way we could trace the bloodline for
evidence, is there?
However, from a genetic standpoint, inbreeding really isn't good
for the offspring. So if it can be avoided, we should try to avoid
it if we could help it, shouldn't we?