Definition of insanity - trying the same thing over and over and expecting a different result?Yes but you must remember that it was the wrong model of communism. If only they'd tried the right model. We still haven't seen the right model used anywhere in the world but one day brothers and sisters, one day the paradise of true communism will be found.
Not in my lifetime though.
On paper communism will work, it's just when you introduce human beings to the model that it all goes pear shaped.