When most children are beginning to read words and numbers, five-year-old Arjun Prajapati is already asking questions about infinity, black holes and the origins of the universe. He wants to know what happened before the Big Bang and why certain mathematical problems have no straightforward answers.The young boy's appetite for knowledge has taken him far beyond what is usually expected at his age. Arjun reportedly started reading independently at around 18 months and has explored more than 3,000 books covering subjects ranging from mathematics and astronomy to genetics, microbiology and human physiology.
