Has Real Socialism Ever Been Tried?

Consider these two couplets:

Socialists are far more likely to deny actually-existing socialism.

Couplet #1: "Socialism has failed." "No, real socialism has never existed."

Couplet #2: "Libertarianism has failed." "No, real libertarianism has never existed."

are far more likely to deny actually-existing socialism.Couplet #1: "Socialism has failed." "No, real socialism has never existed."

Couplet #2: "Libertarianism has failed." "No, real libertarianism has never existed."