The body of knowledge is getting bigger year by year. Our energy and time are limited. Therefore, the focus is the best strategy. Focus means getting deeper into what we know and at the same time, realizing that still something we don’t know out the

What makes these research great? The researchers asked good question. About limit of our knowledge and potential. Many popular psychology book claim that individual knowledge and potential is unlimited. Unfortunately, this is only mere opinion or false hope, not established fact.