english: Why is it that when we had rotary phones, when we were having folks being crippled by polio, that we were teaching the same way then that we're doing right now?
non_english: Prečo? Prečo keď sme používali rotačné číselnice na telefónoch, keď bolo mnoho ľudí postihnutých obrnou, sme učili rovnako ako učíme teraz?