There have been innumerable debates between various political tendencies through online forums on the topic of Trotsky's theory of permanent revolution.
It seems the main theories that came about in the late 19th and early 20th centuries concerning socialist revolution were Stageism (a nation must first go through a national-democratic bourgeois revolution before a socialist revolution), Trotsky's Permanent Revolution (in a nation with a weak national bourgeoisie, and a small proletariat, the working class carries out the tasks of the national revolution and carries along the peasantry/other non-exploiting strata directly to the proletarian dictatorship) and Lenin's "Democratic Dictatorship of the Proletariat and the Peasantry" (a strange, ambiguous half-way point between the other two theories).
There aren't anywhere near as many nations today that have a majority peasant or agrarian population, and those that are generally have a much more sizeable working class than in the past.
For example, China:
China's population is 1.3 billion. This figure puts China's working class at .8 billion as of 2006."
Is the debate concerning stageism and permanent revolution any less important today now that the demographics have altered so dramatically? Does the success of the Russian proletariat to establish its political supremacy initially in the October Revolution, and the failure of the numerous 'Stageist' national-liberation governments (most recently Nepal), prove Trotsky's original theory of PR correct?