Why we age, is arguably one of the oldest unanswered questions that spawned multiple hypotheses, all of which remain to be unequivocally proven. In recent years however, our understanding of ageing has been impacted by several seminal discoveries from different fields of biology and mathematics. Although the details of these discoveries have yet to be fully elucidated, the nature of their effects is already sufficiently radical and clear that it challenges the long-held intuitive perspectives of why and how we age. The notion that ageing may be mitigated, slowed, halted, or perhaps even reversed, is less fanciful than previously assumed.