Since fantasy isn't about technology the accelleration has no impact at all. But it's changed the lives of fantasy writers and editors. I get to live in England and work for a New York publisher!
I'm ashamed to say this but I watched every episode of 'Starsky and Hutch' as a kid. I loved that show but now I think it's stupid - they'd have a car chase for no reason then Paul Michael Glaser would shoot the car and it would blow up.
