请解释人工智能的概念，要求回答包括三个要点，每点用一个英文句子表示，且每句以“AI is”开头。
user
AI is the simulation of human intelligence in machines that are programmed to think and learn like humans.
AI is capable of performing tasks that typically require human intelligence, such as visual perception, speech recognition, and decision-making.
AI is a broad field that encompasses various technologies and techniques, including machine learning, neural networks, and natural language processing.
assistant