Stefano Merlo was born in Paris and lived in Colombia until he was 7, when he moved to New York City. He attended Stuyvesant High School, where he was a Math Team Captain. He participated in numerous math competitions in high school, finishing 3rd at ARML in 1991 and 1st at NYSML in 1992. He then attended Harvard, graduating magna cum laude in 1996 with a degree in Biochemical Sciences. He received a Master's Degree in Mathematics from UCLA in 1999. His hobbies include bridge and scuba diving. Stefano joined Math-M-Addicts in 2015.