Half Past Human is a fixup science fiction novel by American author T. J. Bass, published in 1971.

Two short stories were combined and fleshed out to form this novel: "Half Past Human", first published in Galaxy Science Fiction in December 1969, and "G.I.T.A.R.

Human science has created the four-toed Nebish, a pallid, short-lived and highly programmable humanoid who has had the elements that do not facilitate an underground Hive existence (aggression, curiosity, etc.)

Something strange is happening, as the primitive buckeyes are showing signs of a purpose whose goal is unclear and probably dangerous to the balance of the Hive.

There seems to be a third party stirring the pot, campaigning in a relentlessly successful battle with the computer minds that keep this "brave new world" in balance.