Defining intelligence in a way that captures everything relevant and isn't self referential is extremely difficult. Dr. Marcus Hutter's AIXI is a solid mathema

Defining intelligence in a way that captures everything relevant and isn't self referential is extremely difficult. Dr. Marcus Hutter's AIXI is a solid mathematical treatise that reduces intelligence to the concept of information compression, and you can exhaustively construct a logical extrapolation from aixi to any particular feature of intelligence at higher levels, but it's similar to string theory in that it's all-encompassing in scope. It's not useful in narrowing the solution space if you want to build a high level intelligent system. https://en.wikipedia.org/wiki/AIXI https://en.wikipedia.org/wiki/AIXI