Madeleine Cuff, an environment reporter for New Scientist, shares alarming insights on coral dieback as the first major climate tipping point is reached, highlighting its catastrophic global effects. Carissa Wong, a science journalist, discusses groundbreaking brain implant technology that enabled a paralyzed man to control another's hand, opening discussions on rehabilitation and ethical concerns. Sumo expert John Gunning reflects on the unique challenges and health risks of sumo wrestling, emphasizing the sport's impact on longevity and proposed safety measures.