"What if's" are interesting, but so is real history. The indisputable 'absolute' are that Jesus did walk the earth (too many writing exist for it to be disputed), he was a Galilean Jewish Preacher, who started his own ministry. Another absolute is that he was considered a threat by the ruler of the time, and was crucified, but his followers continued his preachings and wrote many letters. He left behind 4 brothers, and some unnamed sisters. The 'non absolute' are that he was the Son of God, conceived by the 'Holy Spirit"; performed miracles, and rose from the dead, and will be coming back? Real or not real, for me, the study of religion was one of the most interesting subject I've taken.