If nothing else, the Bolshevik Revolution was seen as an absolute break with the past. That is how it was planned, how it was hymned (“We’ll burn up Raphael for our Tomorrow’s sake,” wrote Vladimir Kirillov; he was shot twenty years later), and how many of its opponents understood it. With the exception of those realists who regarded it as a reversion to barbarism, Red October was perceived as something essentially modern, or, even, to some, as rather more than modern, a pathway, to borrow a pre-revolutionary phrase from Trotsky, towards a “radiant future.”

The imagining of that radiant future owed more to ancient fantasies than a Lenin or Trotsky would ever admit, even probably to themselves. But burrow through their verbiage, eliminate the preoccupations of time and place—czars and capital and imperialism— and it becomes obvious that the Bolsheviks, or at least their truest believers, were merely the latest generation of millennialist fanatics to bother our planet, even if they wanted to build rather more of Heaven here on earth (or “earths”—I’ll get to that) than their predecessors. “We are kindling a new eternity,” declaimed the poet Vladimir Mayakovsky shortly after the revolution—and a decade or so before his suicide.

Read the words that follow Trotsky’s reference to “a radiant future” and the breadth of his vision is impossible to miss: “Man, strong and beautiful, will become master of the drifting stream of his history and will direct it towards the boundless horizons of beauty, joy