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Ever wonder what it's like to boldly go beneath the waves in your own personal submarine? 

Mike Sullivan reconnects with childhood friend and submersible pioneer Charles “Chuck” Kohnen, CEO of SEAmagine. 

Together, they dive deep—literally and figuratively—into Chuck’s journey of building state-of-the-art personal and scientific submarines in California. 

Along the way, Charles shares stories of exploring uncharted ocean depths, discovering unknown species, and witnessing the tangible effects of climate change underwater. 

Listen For:

0:15 Reuniting After 42 Years: From high school to submarines

5:23 Star Trek Dreams and Choosing Engineering Over Art

17:28 Accidental Shark Discovery and Scientific Fame

26:15 Who Buys a Personal Submarine? The Rise of Billionaire Buyers

31:30 Climate Change Below: 30°C Water at 100m Depth

39:04 Whale Shark Encounters and Nature’s Raw Power

45:04 OceanGate, Regulation, and Building Safe Subs

Connect with guest Charles Kohnen

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