alt Hacker News> The USSR was never economically or scientifically on par with the US
We can call it solidly #2 if you prefer, but going from a failed empire to #2 in the world is still a real achievement. To be clear, I was not making a statement on whether I think central planning is superior; I was merely contesting the claim that it can not work at scale, which I find to be clearly untrue. Whether it's inferior or not, we have an impressive example indicating that success is at least possible. I would also expect the modern era to offer a better opportunity for central planning than in the past if any nation wanted to give it another go because significantly more well-informed decisions could be made with the degree of data and instant communication we have available today. That said, I certainly wouldn't be keen to advocate for it in my own country, because I don't much like the idea of giving the state absolute control in an era with a level of surveillance the KGB could not have dreamed of.
You can't even measure it cleanly. It was so isolated and its currency wasn't even convertible, but by most measures Japan and West Germany had larger economies with far, far, far better living standards. Go to per-capita level equivalents and you'd be hard pressed to find it higher than any western developed country. Even economic basket-case countries in South America often had better living standards.
North Korea is sending things into space. You can't measure a country on its isolated accomplishments, even if they're impressive.