We’re in a moment of insatiable desire for more energy and more computing. And so the ideas of how to provide said energy and computing are getting ever more adventurous.

Case in point: Panthalassa, which is the subject of this week’s episode, alongside our guest Garth Sheldon-Coulson, the company’s co-founder and CEO.

Panthalassa makes an object that it calls a node and that looks like a giant lollipop. This odd contraption is meant to live out in the deep ocean and produce energy from the movement of waves. Water goes into the node where it’s funneled through a series of channels and pressurized. After that, the water is directed into a turbine that spins and connects to a generator that produces electricity.

How big is this node? Quite f*****g big. It’s about 20 meters across at the top of the lollipop and then goes down about 80 meters into the water. The contraption can move and steer on its own and travel about 30 miles a day to reach the ideal spots where the waves just keep coming and coming.

There’s some universe where this thing is bobbing around in the ocean, generating electricity day and night and storing the electricity in batteries. Panthalassa, though, wants to put servers packed full of GPUs and TPUs right on board and use the electricity to fuel AI jobs. It will then send the results of the work up into space via Starlink and then back down to Earth. Simple.

We get into all of this in detail with Sheldon-Coulson.

Panthalassa has been operating in semi-secret for about ten years. This episode marks the first time that Sheldon-Coulson has discussed the company’s technology at length. We talk about his backstory, how this wild idea came to be and the engineering behind the nodes.

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