Stanley R. Lee, The great implication (1961)
“ Blackburn said, "is this: the experimental observer, not the one who takes the time trip, must be standing in plain view of the building. He must be expecting gargoyles to appear. When they do, he will not be tempted to call the phenomenon a miracle. When the gargoyles suddenly pop out—in apparent defiance of various physical laws—he can intelligently conclude that a specific time experiment has been performed and that a change in the past has in fact occurred, a conclusion that will restore the appearance of the gargoyles to the realm of non-miraculous events." ”
