Victor Vescovo completed the deepest ocean dive in human history when he reached 10,928 meters into the Challenger Deep in the Mariana Trench of the Pacific Ocean. The entire journey took nearly 12 hours — four hours to descend, four hours spent at the bottom, and then about four hours to ascend again. Jennifer Zabasajja speaks with Vescovo on his unprecedented dive and how the experience changed him for good.

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TicToc is a daily news podcast hosted by Jennifer Zabasajja (@jenniferlaurenz) produced at Bloomberg Worldwide HQ in New York City. You can follow up with us and watch our reporting @tictoc. If you like it, be sure to rate us on iTunes, and tell your friends!