# The Ocean Is Deeper Than You Think. We Need Better Maps.

An episode of [Huge If True Podcast](https://invisiblenetwork.ai/podcast/6791663704), 3 Sep 2026, 13 min.

Audio: https://mcdn.podbean.com/mf/web/xbwk5kr43sbemi86/The_Ocean_Is_Deeper_Than_You_Think_We_Need_Better_Maps98ljb.mp3

Why deep sea maps are SO BAD (and how to fix it)... Subscribe for more optimistic science and tech stories. Our maps of the ocean are surprisingly bad! On Google Maps it looks like we know so much… but we know less about the ocean floor than we do the surface of Mars. And that’s a big problem, because we are using the ocean all the time: We’re laying internet cables across it, we fight wars in it, we search it during a crisis - like the imploded OceanGate Titan submersible or the missing Malaysia Airlines Flight 370. 71% of the surface of the Earth is water! And yet we have a surprisingly limited view of what’s below it.

## Chapters

- 0:00 How bad are our ocean maps?
- 1:40 How deep is the ocean?
- 3:05 What is the deepest part of the ocean?
- 4:04 The craziest method to map the ocean
- 6:20 How does sonar work?
- 7:31 What did the first ocean maps look like?
- 9:30 How do we map the ocean now?
- 10:30 What is Seabed 2030?
- 11:40 How do we use underwater robots?
- 12:27 Concerns with mapping the deep ocean
- 13:11 Why deep ocean mapping is huge if true

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