 There are many philosophers who have supposed that The Turing Test is intended to provide logically sufficient conditions for the attribution of intelligence. That is, there are many philosophers who have supposed that The Turing Test claims that it is logically impossible for something that lacks intelligence to pass The Turing Test. (Often, this supposition goes with an interpretation according to which passing The Turing Test requires rather a lot, e.g., producing behavior that is indistinguishable from human behavior over an entire lifetime.)