But in view of the universality property wesee that either of these questions is equivalent to this, ‘Let usWx our attention onone particular digital computerC. Is it true that by modifying this computer tohave an adequate storage, suitably increasing its speed of action, and providing itwith an appropriate programme,Ccan be made to play satisfactorily the part ofA in the imitation game, the part of B being taken by a man?’
Turing's key question/key sentences- set up real question that he is writing the rest of this essay to answer.