James Underdown, founder of the Centre for Inquiry Investigations Group (CFIIG), joins John Maytham in studio to discuss 25 years of investigating paranormal claims. Despite offering a $500,000 prize for proof of supernatural ability, no one has ever passed a science-based test. From exposing psychics and dowsers to challenging faith healers and flat earthers, Underdown shares insights on why belief in the paranormal persists and why scepticism is more important than ever.