The only way you can lose heat in space is through radiation. But radiation carries momentum. Not much per photon, but it was enough to cause the Pioneer probes to move in unexpected ways. This means you have to emit equal amounts of heat towards Earth and towards space. If your resultant is zero, then you're fine. You can even direct some of the heat backwards. It won't do a huge amount, but every bit of atmospheric drag you overcome, the less fuel you need to use to stay in orbit.

So you basically need absolutely gigantic radiators behind the space-based data centre, located inside a parabolic dish that will generate drag of its own (not to mention a potential difference betwen the lower and upper sections).

This is an insane level of complexity. You're better off parking it in a stable orbit between the Earth and the moon, so it's absolutely clear of atmospheric effects. You're still going to need radiators, but it's marginally better as you don't have to do quite so much directing of it. The latency would be horrible, maintenance would be next to impossible, and there's all kinds of other issues to consider.

No, I don't think you can make this workable.

However, space might be useful. This very same issue of heat only being radiated means that you can make wafers with much more even loss of temperature, no dust, bacteria, or dirt, and much lower gravity. If you were to make extremely high quality wafers (silicon or gallium arsonide) in space, then you should be able to make WSI processors, which should in turn reduce the demands that datacentres make.

The time it would take to set all this up would be about the same time as it took for IBM to perfect its stacked transistor topology. Intel was talking 90 cores per wafer-scale CPU a few years back - the shrinkage in transistors since then plus the x10 density IBM proposes might push you to 1800 cores per wafer, provided you can get the quality high enough. Which, in space, is quite possible.

You wouldn't need your datacentres in space. Your wafer-scale CPU plus packaging would be about the same size as a CD drive. You could pretty much dispense with datacentres at that point. A typical tower will have two spare bays. "Cartridge datacentres" could simply be plugged in as needed. A regular CPU-based cartridge for heavy general-purpose computing, a GPU-based cartridge for LLMs. Yes, home users would have power usage through the roof, but then it's no longer your problem.

Isn't ALL of Reddit 'old'?

Thought so.:-)

There's still Soprano.com, Alto.com and Baritone.com

It really is.

"They can stick their heads in the sand.." ...swamp.

The tyre burst annoys me. The Air France Concordes didn't have the same safety features as the British Airways one - specifically, the BA ones had guards against burst tyres.

Virgin Airways wanted to buy the BA planes to keep them flying and offered to, but BA just didn't want to give them a public relations win so refused to sell. Shambles all round.

Well, there was a typo in the antibiotic generation prompt fed to the lab machine.

Is that 100 billion transistors in that chip or are you just happy to see me?

The only interesting story you can tell about Superman is bringing up the question... "If you're so powerful, why not just use it for your own purposes? Nobody can stop you. Why help people?" And the answer, which has always been part of the Superman mythos, was that he was raised by two salt-of-the-earth good people out in the middle of nowhere who taught him good old fashioned American values. He does it because it's the right thing to do. Does anyone remember "Truth, Justice (and the American Way)?" I think the recent Superman movie did a reasonable job of leaning into that, in an environment where the audience is jaded about American institutions. It's a tough sell, particularly trying to sell the movie to urban audiences to see everything rural as something to look down on, and rural audiences who see everything urban as selfish and corrupt.

By 2026, mobile money in sub-Saharan Africa has processed hundreds of billions of dollars annually across dozens of countries. Kenya, Tanzania, Uganda, Ghana, Senegal, Côte d'Ivoire, all have thriving mobile money ecosystems where a market trader, a farmer, a domestic worker, anyone with a $15 phone can send and receive money instantly, securely, with a transaction record, no check, no bank, no signature, no piece of paper traveling through an unlocked box.

The richest country on earth, with the most sophisticated banking system, the most advanced technology companies, and essentially universal internet access, is still moving money by writing account details on paper, signing it, putting it in an envelope, dropping it in an unlocked metal box, waiting for a government employee to physically transport it, having it scanned at a processing centre, and clearing it through a multi-day settlement system.

A Kenyan goat farmer with a Nokia from 2009 completes the same transaction in four seconds.

You can't have everything.

These can be published or accessed, but never both at the same time.

It has been my experience, sad to say, that online stores aren't above selling consumer credit card information either, and I've grounds to think Amazon is one that does this.

I have an industrial air conditioner for my home. (It's a small home, but summers are increasingly severe.)

I don't recall being asked a damn thing.

My suspicion is that this is scaremongering.