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The side effects of spending funds on these mega projects is also something to consider. NASA spending has created a huge pile of technologies that we use day to day: https://en.wikipedia.org/wiki/NASA_spin-off_technologies.
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Also railways would always have alternative uses at that time - e.g. logistics in warfare.

What other uses do GPU's have that are critical...? lol

In addition to your points, this is why I always laugh when people do backward comparisons. What characteristics do they share in common? Very little.

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GPUs do have a use in warfare though. I mean, LLMs are basically offensive weapons disguised as software engineers.

Sure, LLMs can kind of put together a prototype of some CRUD app, so long as it doesn’t need to be maintainable, understandable, innovative or secure. But they excel at persisting until some arbitrary well defined condition is met, and it appears to be the case that “you gain entry to system X” works well as one of those conditions.

Given the amount of industrial infrastructure connected to the internet, and the ways in which it can break, LLMs are at some point going to be used as weapons. And it seems likely that they’ll be rather effective.

FWIW, people first saw TNT as a way to dye things yellow, and then as a mining tool. So LLMs starting out as chatbots and then being seen as (bad) software engineers does put them in good company.

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> GPUs do have a use in warfare though.

Unclassified public cloud GPUs are completely useless when your warfighting workloads are at the SECRET level or above.

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They’re unclassified public cloud GPUs today, much the same as the massive industrial base of the United States was churning out harmless consumer widgets in 1939. Those widget makers happened to be reconfigurable into weapon makers, and so wartime production exploded from 2% to 40% of GDP in 5 years [1]. But the total industrial output of course didn’t expand by nearly that much.

I think it’s maybe plausible that private compute feels similar in the next do-or-die global war.

[1] https://eh.net/encyclopedia/the-american-economy-during-worl...

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On the topic of warfare, wars are fought differently now. Compute will be mentioned in the same breath as total manufacturing output if a global war between superpowers erupts. In highly competitive industries this is already the case. Compute will be part of industrial mobilization in the same way that physical manufacturing or transportation capacity were mobilized in WWII. I’m not an expert on military computing but my intuition is that FLOPS are probably even more easily fungible into wartime compute than widget makers, and the US was able to go widgets->weapons on an unbelievable scale last time.
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Great point!
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