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I see your point, however, consider this: to a farmer in 1900, our modern food system is already "end of history" post-scarcity sci-fi. Back then, one farmer fed ~4 people. Today, thanks to automation, GMO and fertilizers, one farmer feeds ~170. We effectively solved the "calorie problem" for the developed world.

But the economy didn't flatline just because we hit THAT manufacturing ceiling. Value simply migrated from manufacturing (growing wheat, assembling cars) to services (Michelin dining, DoorDash, TikTok influencers). Radio did not turn out to be the last useful invention it was predicted to be. Knowledge generation has sped up dramatically.

Your point is fair regarding hardware - eventually you do run out of stars or hit the Landauer limit. But this is exactly Deutsch’s distinction between resources (finite) and knowledge (infinite). Even in a bounded physical system, the "software" (the art, explanations, and social structures) isn't bounded by the clock speed. We don't need infinite atoms to have infinite creativity and knowledge