What Artificial Intelligence (AI) is at the current time is not what it should be. The mainstream works in the field are on domain-specific problems and solutions. Instead, AI should focus on general-purpose systems that are adaptive to its environment, and can work with insufficient knowledge and resources. AI in this sense is unified with Cognitive Science at a general level, with the latter focuses on the theoretical aspect of the intelligence-cognition-thinking process in various types of systems (human, machine, etc.).