it is ridiculous
Examples
It is ridiculous to set a detective story in New York City. New York City is itself a detective story.
It is ridiculous to suppose that the great head of things, whatever it be, pays any regard to human affairs.
Electric technology is directly related to our central nervous systems, so it is ridiculous to talk of "what the public wants" played over its own nerves.
I wanted to run after him, but remembered that it is ridiculous to run after one's wife's lover in one's socks; and I did not wish to be ridiculous but terrible.
You cannot love everyone; it is ridiculous to think you can.
It is ridiculous that somebody picks up the phone and calls somebody they see on television. Why don't they call somebody in their area? Don't they know about that?