[1] The novel is the first part of the Greenwich Village Trilogy, with Michael Kurland writing the second book (The Unicorn Girl) and the third volume (The Probability Pad) written by T.A.

The time is an undefined near future, indicated by SF elements such as video phones and personal hovercraft; the Bicentennial is also mentioned.

[2] The book's title refers to a character, Sean, who is able to spontaneously produce butterflies of all shapes, sizes, and colors after taking a "Reality Pill."

[2] The book's counterculture subject matter and lighthearted tone have led to it being associated with the New Wave movement in science fiction.

[3] Although some reviews state that the novel is "written with wit and elegance,"[4] and "an engaging expression of countercultural exuberance,"[5] another says it was "already dated" as of 1984.