How can genius be identified

Geniuses are people who's intelligence are far beyond normal or above the required I. Q so a research said almost all people are geniuses if they can unlock their potential it is said that Albert Einstein was not intelligent when he was small but at the end he was known as the most intelligent at the turn of the twentieth century and said to have used 7%of is BRAIN I. q the highest used by Any human from What we have hear does it mean it is possible to gain a higher I. Q through constant meditation can anyone answer my question