Short answers, pulled from the story.
The philosophy of artificial intelligence is a branch of the philosophy of mind and the philosophy of computer science that explores whether machines can be intelligent, conscious, or have genuine mental states. It addresses questions about the nature of intelligence, ethics, consciousness, epistemology, and free will as they relate to AI systems.
The Turing test, introduced by Alan Turing in 1950, proposes that if a machine can converse in a way indistinguishable from a human in an online chat, it should be considered intelligent. Critics including Stuart Russell and Peter Norvig have argued that it measures "humanness" rather than genuine intelligence, since human behavior and intelligent behavior are not identical.
John Searle's Chinese room thought experiment asks us to imagine a person following instructions on index cards to produce fluent Chinese responses without understanding Chinese at all. Searle concluded that no physical symbol system can possess a mind or genuine understanding, and that mental states require the specific physical and chemical properties of actual human brains.
In 1963, Allen Newell and Herbert Simon proposed the physical symbol system hypothesis, stating that "a physical symbol system has the necessary and sufficient means of general intelligent action." This implied both that human thinking is a form of symbol manipulation and that machines capable of symbol manipulation can be intelligent.
Hubert Dreyfus argued that human intelligence depends primarily on fast intuitive judgements rather than step-by-step symbolic rules, and that formal rules could never fully capture these intuitive skills. Historian Daniel Crevier later wrote that "time has proven the accuracy and perceptiveness of some of Dreyfus's comments," and that his insights might have shaped AI research sooner had they been stated less aggressively.
The Singularity is a concept proposed by Vernor Vinge describing the hypothetical point at which computers might become thousands or millions of times more intelligent than humans, potentially over just a few years. Vinge suggested this transition could be dangerous for humanity, a concern examined by the philosophical position called Singularitarianism.