There are several different "why"s. You should first list and characterize them. Then you will see how each of them would fit into the algorithm of your AI.

There are several different "why"s. You should first list and characterize them. Then you will see how each of them would fit into the algorithm of your AI. But basically, why questions can be considered as (intermediate) goals that need to be generated to make progress toward the ultimate goal of the AI.