Did socialism fail?
It's become common knowledge that "only capitalism works".
Their proof is because most of the communist countries "gave up".
But that was a political decision made by corrupt elites. While it does prove that the political system of communism failed, and it unquestionably did, it doesn't say anything about the economic system of socialism.
So for the purpose of adding data to the debate, here's some historic GDP graphs. These aren't meant to be the final word in this debate, but merely add to it.
China GDP Y/Y