Carlton is an android working for alex and lewis, two comedians from the twenty-second century who travel the outer vaudeville circuit of the solar system known ironically as The Road To Mars. Being a computer he can't u...Carlton is an android working for alex and lewis, two comedians from the twenty-second century who travel the outer vaudeville circuit of the solar system known ironically as The Road To Mars. Being a computer he can't understand irony, but is nevertheless attempting to write a thesis about comedy, its place in evolution, and whether it can ever be cured.