And nobody ever calls them out on it.
Today's data centres are optimised for reliability, redundancy, density, repairability, connectivity and latency. Most of advertised savings come not from placing the data centre in space, but the fact that advocates have argued away the need for absolutely everything that modern data centres are designed to supply, except for the compute.
If they can really build a space data centre satellite for as cheap as they claim, why launch it? Just drive it out into the middle of the desert and dump it there. It can access the internet via starlink, and already has solar panels for power and radiators for cooling. IMO, If it can cool itself in direct sunlight in space, it can cool itself in the desert.
The main thing that space gains you over setting up the same satellite in the desert is ~23 hours of power, vs the ~12 hours of power on the ground. And you suddenly gain the ability to repair the satellite. The cost of the launch would have to be extremely cheap before the extra 11ish hours of runtime per day outweighed the cost of a launch; Just build twice as many "ground satellites".
And that's with a space optimised design. We can gain even more cost savings by designing proper distributed datacenter elements. You don't need lightweight materials, just use steel. You can get rid of the large radiators and become more reliant on air cooling. You can built each element bigger, because you don't have to fit the rocket dimensions. You could even add a wind turbine, so your daily runtime isn't dependant on daylight hours. Might even be worth getting rid of solar and optimising for wind power instead.
An actual ground optimised design should be able to deliver the same functionality as the space data centre, for much cheaper costs. And it's this ground optimised distributed design that space data centres should be compared to, not today's datacenter which are hyper-optimised for pre-AI use cases.
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Space data centres are nothing more than a cool Sci-Fi solution looking for a problem. There have been mumblings for years, but they were never viable (even bitcoin mining was a bit too latency sensitive). Space data centre advocates have been handed a massive win with this recent AI boom, it's the perfect problem for their favourite solution to solve.
But because it's a solution looking for a problem, they are completely blind to other solutions that might be an even better fit.
Elon has already built tons of data centers here on earth. He knows how to build them quickly. People even build them in tents these days.
I've seen this "kids are insurance against loneliness" logic repeated often, but I don't believe this bares out in reality. I personally know plenty of child-free older couples who remain quite happy and social. I also know plenty of parents whose kids don't speak to them anymore or whose children have lives on the other side of the country/world. Anecdotally the loneliest older people I know are ones who have put it upon their children to keep themselves from loneliness.
> And despite all that, we love them and we want to have them
As a parent I always find it funny that we need to add this to every statement of frustration of family life (I'm not critiquing you, I also say this every time I mention any frustration about parenting). It is worth recognizing that saying the contrary is fundamentally taboo. I find this to be another under-discussed challenging of parenting: you can never even entertain the idea that "maybe this wasn't what I wanted"
COVID was exceptionally hard on these people. A lot of the weirdness of the COVID years was just people going crazy in isolation. Trading random stocks, or ordering crazy nonsense off of Amazon. Being alone is literally psychological abuse and a lot of them were subjected to it for months at a time.