Communism is today not the name of a solution, but the name of a problem, the problema of commons in all its dimensions--the commons of nature as the substance of our life, the problema of our biogenetic commons, the problema of our cultural commons ('intellectual property'), and, last but not least, commons as the universal space of humanity from which no one should be excluded. Whatever the solution, it will have to deal with these problems. This is why, as Alvaro Garcia Linera once put it, our horizon has to remain Communist--a horizon not as an inaccessible ideal, but as a space of ideas within which we move.