in Bizarre/Oddities Mathematician Paul Erdos could calculate in his head… by Web Desk December 8, 2016, 7:12 pm 254 Views Mathematician Paul Erdos could calculate in his head, given a person’s age, how many seconds they had lived, when he was just 4 years old. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website By using this form you agree with the storage and handling of your data by this website. *