It's more fun having him as everyman in the 25th Century. It is better to concentrate on what this planet will be like 500 years from now, and not be dealing with little aliens in space and all that related stuff.
“I guess I still feel that I'm a comedian; if I had to pick one thing that I feel like I could do, it would be that. That doesn't mean that I like it, but I feel that's what I am.”