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AI

The Ghost of Edison in the AI Data Center

For over a century, the story of modern electricity has been framed by the “War of the Currents.” Thomas Edison championed Direct Current (DC)—a stable, continuous flow of energy—while Nikola Tesla and George Westinghouse backed Alternating Current (AC), which could be easily stepped up in voltage to travel long distances across the grid.

Tesla won. AC became the lifeblood of the global power grid. But history has a funny way of looping back on itself. Today, as we stand on the precipice of the largest infrastructure build-out in human history—the artificial intelligence data center—Edison’s DC power is making a quiet, monumental comeback.

The catalyst? The sheer, unyielding physics of energy consumption.

The AI boom, driven by massive GPU clusters from companies like NVIDIA, is extraordinarily power-hungry. We are no longer measuring data center power in megawatts; we are measuring it in gigawatts. And when you are dealing with power at that scale, the friction of legacy architecture becomes a multi-billion-dollar bottleneck.

On X Ben Bajarin cited a recent conference discussion by an executive from power management supplier Eaton that highlighted a massive architectural shift happening right now behind the scenes:

“800-volt DC to the rack is probably one of the biggest architectural changes that are starting to be designed into data centers, and a lot of those designs are taking place right now. You know, honestly, when look at Eaton, I think that’s one of the untold stories here, is that DC power is probably one of the biggest transformational things that are going to hit the electrical industry since, quite frankly, AC electricity was around in the Edison days.”

To understand why this is revolutionary, you have to look at how a traditional data center gets its power. Power arrives from the utility grid as medium-voltage AC. It is then stepped down to low-voltage AC, sent to the server floor, converted into DC, stepped down again, and finally fed into the server rack at 54 volts.

Every time power is converted from AC to DC, or stepped down through a transformer, there is a penalty. It generates heat, and it loses energy.

“We estimate that there’s roughly about 5% electrical loss during that transition. If you could just go from DC, directly from the utility feed, all the way through the data center into the rack, that’s 5% efficiency gain that you could get.”

In the abstract, 5% sounds like a rounding error. But scale changes everything. Eaton projects that the upcoming data center build-out to support AI will require somewhere between 50 and 100 gigawatts of power.

“So on 50 gigawatts or 100 gigawatts of power generation that’s needed, that’s 5 gigawatts of power that all of a sudden just appears from the existing infrastructure. And that is really, that is really exciting.”

Five gigawatts is not a rounding error. Five gigawatts is the equivalent output of five standard nuclear reactors. It is enough energy to power millions of homes. And in this new 800-volt DC architecture, those five gigawatts aren’t created by burning more coal, building more solar panels, or splitting more atoms.

They are created purely by the removal of friction. By subtracting the unnecessary steps.

There is a profound philosophical metaphor hidden in this electrical engineering triumph. In our own lives, and in our organizations, we are obsessed with generation. When we face a deficit—a lack of time, a lack of output, a lack of revenue—our default instinct is to generate more. We try to work longer hours, hire more people, or drink more coffee.

But how much of our daily energy is lost to “conversion friction”? How much mental power evaporates when we constantly context-switch between tasks, essentially converting our mental state from AC to DC and back again? How much organizational momentum is lost translating an idea through five different layers of middle management before it reaches the “rack” where the actual work is done?

Often, the most elegant and impactful solution isn’t to generate more power. It is to look at the existing architecture of your life or business, identify the transition points that are bleeding energy as heat, and rewire the system to flow directly to the source.

The invisible architecture that shapes our digital lives is shifting. In the race to build the future of artificial intelligence, the biggest breakthrough wasn’t a new way to create energy, but a century-old method of preserving it.

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AI Business

The Gravity of Compute

We are currently witnessing the single largest deployment of capital in human history. The “Hyperscalers”—the titans of our digital age—are pouring hundreds of billions of dollars into the ground, turning cash into concrete, copper, and silicon.

The prevailing narrative is one of unceasing, exponential growth: bigger models require bigger clusters, which require more power plants, which require more land. It relies on the assumption that the demand for centralized intelligence is insatiable and that the current architecture is the only way to feed it.

But history suggests that technology rarely moves in a straight line; it swings like a pendulum. Two forces are emerging from the periphery that could impact the ROI of this massive infrastructure build-out. One is hiding in your pocket, and the other is waiting in the sky.

A recent conversation with Gavin Baker outlines a potential “bear case” for datacenter compute demand: the rise of Edge AI.

We often assume we need the “God models”—the omniscient, trillion-parameter giants hosted in the cloud—for every interaction. But do we?

Baker suggests that within three years, our phones will possess the DRAM and battery density to run pruned versions of advanced models (like a Gemini 5 or Grok 4) locally. He paints a picture of a device capable of delivering 30 to 60 tokens per second at an “IQ of 115.”

“If that happens, if like 30 to 60 tokens at… a 115 IQ is good enough. I think that’s a bear case.” — Gavin Baker

Consider the implications of that specific number. An IQ of 115 isn’t omniscient, but it is competent. It is capable, nuanced, and helpful.

If Apple’s strategy succeeds—making the phone the primary distributor of privacy-safe, free, local intelligence—the vast majority of our daily queries will never leave the device. We will only reach for the cloud’s “God models” when we are truly stumped, much like we might consult a specialist only after our general practitioner has reached their limit. If 80% of inference happens on the edge for free, the economic model of the trillion-dollar data center begins to look fragile.

Then there is the second threat, one that attacks the terrestrial constraints of the data center itself: the Orbital Data Center. Elon Musk and SpaceX – along with Google’s Project Suncatcher – envision a future where the heavy lifting isn’t done on land, but in orbit. Space offers two things that are scarce and expensive on Earth: unlimited solar energy and an infinite heat sink for radiative cooling. If Starship can reliably loft “server racks” into orbit, the terrestrial moat of land and power grid access—currently the Hyperscalers’ greatest defensive asset—evaporates.

We are left with a fascinating juxtaposition. On one hand, we have the “Edge,” pulling intelligence down from the clouds and putting it into our hands, making it personal, private, and free. On the other, we have “Orbit,” threatening to lift the remaining heavy compute off the planet entirely to bypass the energy bottleneck.

There are hundreds of billions of dollars betting on a future of heavy, centralized gravity. But if the edge gets smart enough, and the orbit gets cheap enough, the gravity may have shifted.