When a person in a closed room is told that "it is dark outside" there is a fifty percent probability that he will believe it. But when he sees the Sun outside through a crack there would be no way to convince him that it is dark out there.
Pindi mtu aliyefungiwa katika chumba atakapoambiwa kuwa 'nje kuna giza' kuna uwezekano wa asilimia hamsini akaamini. Lakini pindi atakapoona jua nje kwa kupitia kwenye nyufa hakutakuwa na njia yoyote ya kumshawishi kuwa nje kuna giza.