There are certainly new contradictions that arose from Reform and Opening Up, but without it it is highly unlikely that China would be in the position it is today, with incredible advancements in the productive forces and a new, multipolar order. I don’t believe this is a departure from classical Marxism at all, but a different application of the same classical Marxist economics. Again, the Soviet economy is not the definition of socialism, but one application of Marxist economics.