What The If?

Team IF is OFF this week, we're celebrating Gaby becoming DR. GABY with the completion of her PhD at Rockefeller University!!! We're super proud of her. So this week we present this encore presentation of one of our most popular episodes, enjoy, and keep those emails coming! WhatTheIF.com/contact -- and send your congratulations to Gaby! --- We salute our newest Patreon members. Thank you: Connie, Martin, and Dan! Welcome to an icy exploration of reality on this episode of "What The IF?" Dive headfirst into a brain-freezing alternate universe, as Philip, Freya, Gabby, and Matt grapple with an extraordinary question, submitted by our Super Iffer listener, Martin from Frankfurt: What the if... water did not have its highest density at plus four degrees Celsius? The team embarks on an adventure that treads the fine line between physics and biology, unwrapping the counter-intuitive conundrums and startling possibilities that lie ahead. In this bewildering world, ice doesn't float and frozen lakes become dead