So over millennia, we developed a reward system that causes us to seek and change our behavior so we can capture rewarding things to counterbalance the pain.

“It has been really challenging to simulate atmospheric wind-pattern change over the Indian Ocean because the system is very, very complicated because of the land,” Han said.

"It has been really challenging to simulate atmospheric wind-pattern change over the Indian Ocean because the system is very, very complicated because of the land," han said.