Thinking
Spoilers: yes. Well, it already had become. Thinking is expensive (consider how much sugar a human brain consumes); therefore, organisms may attempt to think as little as possible in order to save energy. Hence the risk of letting a chess engine play for you (while you instead need to internalize the game of chess, and use the chess engine only as a critic, not a crutch), among other such traps.
Another idea is that what passes for AI these days is similar to outsourcing.