A Box of Rocks could pass the toe-stepping game
The imitation game just shows that a system can produce the outward effects of conversation, not that it can duplicate real human intelligence. Keith Gunderson (1971) makes this point via an analogy with a toe-stepping game (see expanded text).
The imitation game is analogous to a toe-stepping game, in which an interrogator puts his foot through an opening in a wall & tries to determine whether a man or woman stepped on his foot. A box of rocks linked to an electric eye can produce the same effect as toe-stepping, but not duplicate real human toe-stepping.