Imperialism is the highest stage of capitalist development. What are the outstanding theoretical contributions?

The outstanding contribution of this book is to let people see that Marx's theory has finally been ironically proved-all ridiculously low IQ. Now all "imperialist countries" are thriving and very powerful. And they're getting stronger. Of course, domestic horse fans have been exaggerating people's "economic crisis", "dead end" and "chaos" with sour grapes for decades. But 60 years later, all the crises have not destroyed them, but have become stronger and stronger. I wonder how the old horse would feel if he lived to this day.

There used to be a joke in the world: the old horse was resurrected and went to the Soviet Union. The Soviet leader asked the teacher to speak. The old horse thought for a moment into the microphone and said, proletarians all over the world, please forgive me. .....................