And the facts are, we didn't know the answer to that even as recently as 15 years ago, and in fact, we really didn't know it even as recently as six months ago.
והעובדות הן, שלא ידענו את התשובה לכך אפילו לפני 15 שנים, ולמעשה, לא ידענו אותה גם לפני שישה חודשים.