Not at all? He didn't really have that much impact on what anyone else did even when alive, did he? I mean, while he has some fanatic fans, and millions of people love his work, he seems to be pretty much a 'one-off' type. If anyone tried to imitate him, I don't think they succeeded....As we all know, Douglas Adams died of a heart attack in 2001.
What if he had lived?
How would it impact science fiction?
Couldn't agree more. The Sequels to the 1st Hitchhiker's already were way downhill.Hitchhiker's, in ALL its various incarnations was wonderful, but IMO he's a bit of a one-trick pony.