Honestly? Sad turn of events in history. I'm not trying to "Great Man Theory" this, but Wittgenstein's enduring legacy in Philosophy and Linguistics is incredible. Someon like that "defecting" to the USSR might have attracted others due to his sheer brilliance if nothing else, and resulted in a remarkably different Soviet intellectual climate. I treasure the Soviet Unions achievements in science and political struggle, but you know, critical support and all. I wonder if a school of truly international socialist intellectuals would have influenced the shape of history in a positive way. Maybe it would be doomed to fail, but what might have been if they'd moved there and thrived? What would the West look like if it lost some of it's best the other direction? Would left-anti-communism have become such a force if the people propagating it had actually been there to see the reality, or help construct an alternative series of events? Just interesting to think about.