Learning Learning is essential for unknown environments, i.e.,when designer lacks omniscience Learning is useful as a system construction method, -i.e.,expose the agent to reality rather than trying to write it down Learning modifies the agent's decision mechanisms to improve performance Learning • Learning is essential for unknown environments, – i.e., when designer lacks omniscience • Learning is useful as a system construction method, – i.e., expose the agent to reality rather than trying to write it down • Learning modifies the agent's decision mechanisms to improve performance