One of the problems, and it’s one that is obviously going to get worse, is that all the people at the party are either the children or the grandchildren or the great-grandchildren of the people who wouldn’t leave in the first place, and because of all the business about selective breeding and recessive genes and so on, it means that all the people now at the party are either absolutely fanatical partygoers, or gibbering idiots or, more and more frequently, both. Either way, it means that, genetically speaking, each succeeding generation is now less likely to leave than the preceding one.
