In artificial intelligence, an intelligent agent (IA) is an autonomous entity which observes through sensors and acts.
This diagrams can be used to represent the different modules that show how the simple agent work.
The perpendicular lines that do not match row to row create an illusion of the lines between them being not parallel.
Submitted as an answer to the Showcase of Optical Illusions question on TeX SX.
Click the Illusions tag below to see more!