While I wholeheartedly agree with the concept of revolutionary spontaneity, I am little bit skeptical of Endnotes concept of Mediation. It seems like, in so far that mediation does occur, it ought to arise out of whatever natural social reconfiguration there is that occurs. I'm not necessarily suggesting that the text does suggest this, but, I do think that it can be interpreted as having professional revolutionaries serve as mediators during the revolution. While I don't think that this is indicative of the dread Leninism, I do think that such an interpretation could mean for the creation of a new social class. Such a class may be preferable to what exists now, but, is not what is sought after by a revolution "from below".