We are stupid,we must learn from very smart brains people, scientist biologist chemist researchers engineer military technology entrepreneur inventor politics.
Smart people come from U.S, Japan, Germany, England, France, Denmark ,Sweden, khmer people must watch and learn from them everything they do like entrepreneur, inventor, businesses, scientist ,biologist, chemists ,researchers, environmentalist, politics, geologist, military, watch, listen and learn.Then our brains will be very smart like them.