In this episode of Pod Diver Radio, Joe sits back down with Dr. Richard Vann of Divers Alert Network (DAN) to unpack what "safe" really means when it comes to decompression. Dr. Vann explains why decompression sickness (DCS) is rare in warm-water Caribbean-style diving—on the order of 1–2 cases per 10,000 dives—and why cold-water wreck diving under similar depth/time profiles can see up to 15 times higher risk. He breaks down the two pillars of decompression safety: Probability of getting bent Severity of the hit (from mild joint pain to serious neurological injury) We look at how different communities define acceptable risk—from the U.S. Navy (who dive with chambers on standby) to North Sea and Gulf of Mexico commercial operations—and why their numbers and tolerance levels don't look the same as recreational diving. Joe and Dr. Vann also talk about the upcoming DAN Technical Diving Conference, and why collecting real dive profiles and incident reports from tech divers is critical to improving decompression models for both technical and recreational communities. If you're a tech or cave diver, this is your gentle nudge to log your dives, share your data, and help push the science forward.