User blog comment:Nightsassassin9/A Different Theory on Summer Rose./@comment-199.116.171.120-20151028213050/@comment-4010415-20151028222100

Yes, the theory is interesting, but it's also most likely wrong, given what we know now. This is from 2013, try not to necro.

We know now that Ozpin pointed out Ruby's silver eyes because Summer also had silver eyes. We also now know, from Yang's story, that Ruby is Yang's half-sister, and that Summer really did give birth to Ruby.