The pursuit of intelligence is like the pursuit of flight. Airplanes achieve flight, but don't mimic what birds do. The earliest flying machine had bird-like features. Wings that shaped like birds and a mechanism for flapping. Inventors believed that, with precise replication, then their machines could soar the skies. Upon experimentation, their hypothesis failed. Yet, their ambitions led to the very first fixed-wing plane. The quest for 'artificial flight' succeeded when we stopped imitating birds. Nature didn't gave us the principles of aerodynamics, we invented it. Though, we can give our gratitude to Nature for introducing us the phenomena of flight.

The story of 'artificial flight' is like 'artificial intelligence'. What exactly is the aerodynamics of intelligence? Abstracting away the biological-basis of a human brain leads to a system-level understanding. The brain is a complex system of functions, representations, and algorithms. A system designed by evolution approx. ~5 million years ago.