What is one fundamental aspect of Artificial Intelligence?

One fundamental aspect of Artificial Intelligence is that it simulates human-like intelligence in machines. This capability allows AI systems to process information, learn from data, make decisions, and perform tasks that typically require human cognitive functions. The objective of AI is to replicate aspects of human intelligence, such as reasoning, problem-solving, and understanding language, in order to create systems that can interact effectively with the real world.

In contrast, the other options do not accurately capture this core functionality. While training is indeed an important part of developing AI, it often requires significant input and adjustment to ensure effectiveness. Furthermore, AI does not always operate without human oversight; many applications involve human intervention at various stages to guide and refine AI processes. Lastly, AI is not solely designed for commercial use, as it has broad applications in fields such as healthcare, education, and scientific research. Therefore, the simulation of human-like intelligence in machines is what truly defines the essence of artificial intelligence.