A quick recap, using Paul’s snappy titles:
Jonathan: It occurred to me a while back that ideology seems to have drained out of SF. Heinlein’s works may have essentially became fora in which he could appear as an appropriately father-like Mary Sue and then mouth off about whatever political issue was getting his goat at the time, but I think that nowadays genre is struggling to keep in touch with the idea of people being genuinely politically motivated.
The Culture books are weird in that they’re frequently political but the politics aren’t particularly fine-grained. The result is that you have characters working for SC out of a genuine desire to further the political aims of SC but as those aims are frequently unclear, the politics serve quite poorly as character motivation, merely resulting in lots of people being enigmatic and secretive.