It is of course the nature of historical contraction that the shortest distance to a historical destination is never a straight line.
It's not the last one. Five's out, six is coming out in November, that's a single chapter, and then seven is the big horrifying one. And I think a couple after that to wrap the thing up.
We ought to think that we are one of the leaves of a tree, and the tree is all humanity. We cannot live without the others, without the tree.

