Therefore, observers who are not able detect a pattern else than during the day, not even think about other answer than: "someone had to do it during the night".
Kwa hiyo, Waangalizi Ni Nani Si uweza mwingine kuchunguza muundo Than Wakati wa mchana, hata kufikiri juu ya jibu nyingine Than "ilibidi mtu kufanya hivyo Wakati wa usiku".