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How NASA built Artemis II’s fault-tolerant computer

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181–190 of 257 posts

Re: How NASA built Artemis II’s fault-tolerant computer

#181

Earlier quoted context omitted.

Modern software development is a fucking joke. I’m sorry if that offends you. Somehow despite Moore’s law, the industry has figured out how to actually regress on quality.

We have a lot more software developers than 50 years ago and intelligence is still normally distributed.

What’s your point?

Re: How NASA built Artemis II’s fault-tolerant computer

#182

Earlier quoted context omitted.

> optimal Nash equilibrium where both offer and demand are balanced This roughly translates to "optimal utopian society which cannot be criticised in any way" right? Right??

It depends on by what metric you define what is optimal. For the health system or public transport the nash equilibrium of offer and demand is not what feels optimal to most people. For manufacturing s.th. like screws, nails or hammers; I really can't see what should be wrong with it.

Or, paper clips…

Re: How NASA built Artemis II’s fault-tolerant computer

#183
post #135

Earlier quoted context omitted.

> optimal Nash equilibrium where both offer and demand are balanced This roughly translates to "optimal utopian society which cannot be criticised in any way" right? Right??

I don't know if you are being sarcastic. But no, it's not an "utopia" by any means and the free market still has many pitfalls and problems that I described. However, is the best system we have to coordinate the production, distribution and purchasing of services and goods on a mass scale.

[deleted]

Re: How NASA built Artemis II’s fault-tolerant computer

#184

Earlier quoted context omitted.

Contrary to propaganda from the likes of Ludwig von Mises, the free market is not some kind of optimal solution to all of our problems. And it certainly does not produce excellent software.

Propaganda is quite a strong term to describe the works of an economist. If one wants to debate the ideas of von Mises, it'd be useful to consider the Zeitgeist at that time. Von Mises preferred free markets in contrast to the planned economy of the communists. Partly because the latter has difficulties in proper resource allocation and pricing. Note that this was decades before we had working digital computers and d…

Economics is propaganda. It’s not an empiracle science, and it’s claims are mostly used to promote ideologies consistent with government policy or the ideology of powerful individuals with the surplus’s wealth available to pay someone to build a quantitative defense of said ideology. What else would you call it?

Re: How NASA built Artemis II’s fault-tolerant computer

#185
post #146

Earlier quoted context omitted.

Contrary to propaganda from the likes of Ludwig von Mises, the free market is not some kind of optimal solution to all of our problems. And it certainly does not produce excellent software.

Are _you_ making software for the government?

[deleted]

Re: How NASA built Artemis II’s fault-tolerant computer

#186
post #3

The quote from the CMU guy about modern Agile and DevOps approaches challenging architectural discipline is a nice way of saying most of us have completely forgotten how to build deterministic systems. Time-triggered Ethernet with strict frame scheduling feels like it's from a parallel universe compared to how we ship software now.

> “Modern Agile and DevOps approaches prioritize iteration, which can challenge architectural discipline,” Riley explained. “As a result, technical debt accumulates, and maintainability and system resiliency suffer.” Not sure i agree with the premise that "doing agile" implies decision making at odds with architecture: you can still iterate on architecture. Terraform etc make that very easy. Sure, tech debt accumulat…

In theory, yes you could iterate on architecture and potentially even come up with better one with agile approach.

In practice, so many aspects follow from it that it’s not practical to iterate with today’s tools.

Re: How NASA built Artemis II’s fault-tolerant computer

#187
post #16

NASA didn't build this, Lockheed Martin and their subcontractors did. Articles and headlines like this make people think that NASA does a lot more than they actually do. This is like a CEO claiming credit for everything a company does.

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Re: How NASA built Artemis II’s fault-tolerant computer

#189
post #138

Earlier quoted context omitted.

Propaganda is quite a strong term to describe the works of an economist. If one wants to debate the ideas of von Mises, it'd be useful to consider the Zeitgeist at that time. Von Mises preferred free markets in contrast to the planned economy of the communists. Partly because the latter has difficulties in proper resource allocation and pricing. Note that this was decades before we had working digital computers and d…

> The government contractors (private enterprises) are usually tasked with building stuff Ah yes, situation where the government makes a plan and then hands it to the one (1) qualified defense contractor whose facilities are build in swing states to benefit specific congressional campaigns is completely different from central planning.

There are some resemblances, which indicate that you might not have a fully functioning free market. But central planning in the context of von Mises refers to something else. It's about the organization of whole national economies, as in planned economies, a thing you find in communist states or Lenin's "war communism".

Re: How NASA built Artemis II’s fault-tolerant computer

#190

Earlier quoted context omitted.

You could even say that part of the value of Artemis is that we're remembering how to do some very hard things, including the software side. This is something that you can't fake. In a world where one of the more plausible threats of AI is the atrophy of real human skills -- the goose that lays the golden eggs that trains the models -- this is a software feat where I'd claim you couldn't rely on vibe code, at least n…

Don’t count your chickens before they hatch.

I'm not sure you really understood my comment. A large portion of the kind of value I'm talking about comes from attempting the hard thing. If these chickens do not hatch that will be tragic, but we will still have learned something from it. In some ways, we will have learned even more, by getting taught about what we don't know.

Anyway, let's all hope for a safe landing tonight.

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