Greg Bear is an American author of SpeculativeFiction. He is the son-in-law of SF writer Creator/PoulAnderson, and, like his father-in-law, he is best known for his [[MohsScaleOfScienceFictionHardness hard science fiction]], although he has also written {{Fantasy}} novels.

He most well-known work is the classic SF novel ''Literature/BloodMusic'', a ground-breaking story about nanotechnology, but his recent series, ''Literature/TheForerunnerSaga'', based on the ''Franchise/{{Halo}}'' video game series has opened up a new audience for him. He was one of the authors who contributed to Creator/BruceSterling's ''Mirrorshades: The Cyberpunk Anthology'', which was one of the defining works of {{Cyberpunk}}, but has not been particularly associated with cyberpunk beyond that. In fact, he is often mentioned as one of "the Killer B's", a group of writers that also includes Creator/DavidBrin and Creator/GregoryBenford, who are sometimes credited with revitalizing hard science fiction after the rise of cyberpunk. The Killer B's each wrote one volume of a prequel trilogy to Creator/IsaacAsimov's ''Literature/{{Foundation}}'' series.

!! Works by Greg Bear with a page on this Wiki:
* ''Literature/BloodMusic''
* ''Literature/TheForerunnerSaga''
** ''Literature/HaloCryptum''
** ''Literature/HaloPrimordium''
** ''Literature/HaloSilentium''
* ''Literature/HullZeroThree''
* ''Literature/TheWaySeries'' (includes ''Eon'', ''Eternity'', and ''Legacy'')

!! Other works by Greg Bear include:
* ''City at the End of Time''
* ''Corona'' (a Series/StarTrekTheOriginalSeries novel).
* ''Darwin's Radio'' and its sequel ''Darwin's Children''.
* ''The Forge of God'' and its sequel ''Anvil of Stars''.
* ''Dinosaur Summer''
* ''Hegira''
* ''Quantum Logic'' series
** ''Quantico''
** ''Mariposa''
** ''Queen of Angels''
** / (aka ''Slant'')
** ''Heads''
** ''Moving Mars''
* ''Rogue Planet'' (a Franchise/StarWars ExpandedUniverse novel)
* ''Songs of Earth and Power'' (fantasy series)
** ''The Infinity Concerto''
** ''The Serpent Mage''
* ''Vitals''
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!! Tropes in his other works:
* ApocalypseWow: At the end of ''The Forge of God'', the Earth's destruction is described in loving, ''agonizing'' detail.
** It gets more spectacular in the follow up ''Anvil of Stars'': [[spoiler:The Ship of the Law's new noach weapons, given a huge boost by the noach projecting planet Blinker, trash the Killer's entire ''solar system'' in a CurbStompBattle.]]
** And it gets ''weird'' in ''Blood Music'': [[spoiler:The Earth dissolves into a sphere of noocytes, which combined proceed to break reality to such an extent they then AscendToAHigherPlaneOfExistence, taking the Earth and humanity with them.]]
* {{Arcology}}: ''Strength of Stones'' is set AfterTheEnd in a depopulated world where mobile arcologies roam the land, looking for their former inhabitants (who are actually all around, living in squalor, but the arcologies don't recognize them anymore).
* BeethovenWasAnAlienSpy: ''Songs of Earth and Power'' does this with numerous personages to good effect.
* BizarreBabyBoom: In ''Darwin's Radio'' (and sequel), the human race undergoes a disease called "Herod's Flu" because it spontaneously aborts fetuses--and then the mothers become spontaneously pregnant again. It turns out non-coding introns in human DNA occasionally induce a mass evolutionary change, in this case to adapt us to better live in an information-rich world. This is a case of surprisingly plausible HollywoodEvolution, because Bear [[ShownTheirWork shows his work.]]
* ChurchOfHappyology: In ''Heads'', one of the [[HumanPopsicle frozen]] [[BrainInAJar heads]] is that of [[spoiler:none other than K. D. Thierry,]] the founder of a creepy SpaceOpera religion called Logology. At the end of the novel, the protagonist [[spoiler:ends up being infused with the frozen final thoughts of the heads, Thierry's being an acute knowledge of the hoax he created and abject terror in the face of the hell he believes awaits him.]]
* EarthShatteringKaboom: In ''The Forge of God'', [[spoiler:Earth was blown up after (a) being shot with one giant neutronium bullet and one giant anti-neutronium bullet that met and exploded '''and''' (b) having vast quantities of hydrogen extracted from the oceans and turned into hydrogen bombs.]]
** Amped UpToEleven in ''Anvil of Stars'': [[spoiler:Noach weapons were used to create opposing poles of "quark matter" that annihilated ''anything'' between them, creating [=ESKs=] across the Killers' entire solar system.]]
* EternalHero: At the end of ''City at the End of Time'', it's revealed that [[spoiler: Daniel is actually Sangmer, the legendary missing-presumed-dead hero that the characters in the scenes set several trillion years in the future read stories about. When [[CrapsackWorld the entire multiverse started to unravel]] during his lifetime, his demiurge EternalLove Mnemnosyne regressed him to childhood and sent him to be a KingInTheMountain in a PocketDimension. Eventually he is released, with his memories of being Sangmer suppressed, as a human fate-shifter (someone who can jump between parallel universe versions of themselves to avoid bad luck). He then starts from the beginning of human history, journeying to the recent past, where he has shifted into the identity of Daniel, who in turn shifts between multiple Daniels until he ends up in a universe where he is a beggar called Charles Granger. It turns out that this is because [[FromBadToWorse Daniel died as a teenager in this universe]], so he ended up in the nearest equivalant. He then transfers his consciousness into the body of theoretical physicist Fred, his best friend in his home universe and married to the late Daniel's sister in Granger's world. He does all this, as well as being a ManipulativeBastard and TheSociopath, because his suppressed memories are driving him forward to the point where he can stop the multiverse's destruction and reunite with his love. Because she's a demiurge and he's a far-future descendant of humanity, they don't really care how many human identities he sacrifices to succeed.]]
* EternalLove: In the closing moments of ''The City at The End of Time'', it is revealed that Sangmer and his love, who are forced to spend literally eternity apart in order to prevent the end of everything, meet again every time the current universe reaches it's end, only to part again when the next one is created.
* EvolutionPowerup: Bear tries to justify this in ''Darwin's Radio''. A species that evolves "[[TitleDrop Darwin's radio]]" makes abrupt and massive changes in its genome when faced with a significant problem. The radio in question has evolved so that it essentially "knows" what changes are necessary to deal with a particular crisis. One character describes this as "Evolution evolving. Species with a radio can evolve faster and better than species that can't," which ''almost'' makes sense if you think about it.
* GreyGoo: In ''The Forge of God'', this is done deliberately and systematically by a belligerent alien race, to humanity as well as at least one other race. The sequel, ''Anvil of Stars'', is the story of a handful of the survivors of Earth -- specifically, the children -- seeking out the race that destroyed Earth, to enact [[EarthShatteringKaboom the Law]].
* IKEAErotica: A rare example of IKEA erotica being used on purpose, for a reason: in the novel ''Slant'', a couple sex scenes are described with clinical precision, but it's clear that there's not meant to be any sort of romance or passion. In the first scene, a call girl has sex with a client: she doesn't enjoy it, of course, and he's only doing it to infect her. In the second scene, a man is jumped by his very horny wife, and doesn't really get a chance to enjoy himself either. The obsessively detailed style is repeated throughout the novel to create the feeling of being bombarded by information.
* IThoughtItWasForbidden: In ''Songs of Earth And Power'', Michael is questioning one of the [[TheFairFolk Sidhe]], who tells him that none of them eat meat. He asks what they sacrifice to their god, then, and she comes out with [[CantArgueWithElves "Always forbidden, on occasion mandatory"]].
* JourneyToTheCenterOfTheMind: ''Queen of Angels'' has a climactic trip into "the country of the mind" of a killer.
* LatexSpacesuit: In ''Moving Mars'', some rebellious college students decide to go outside in the near-vacuum using "skin seal" (which isn't supposed to be used except in emergencies). It's sprayed onto the body, and requires its user to be naked.
* LegoGenetics: A favorite of the author, popping up in ''Literature/TheWaySeries'' (The Geshels like different bodies), ''Literature/HullZeroThree'', (The ship can clone), and ''Literature/BloodMusic''.
* LiteraryWorkOfMagic: In ''Songs of Earth and Power'', ''any'' sufficiently great work of art is magical.
* MindVirus: ''Vitals'' features bio-engineered viruses that manipulate their victims hormones and brain chemistry. Though the viruses themselves are undirected, the [[TheOmniscientCouncilOfVagueness evil government conspiracy]] will "dose" people with different strains of the virus, in combination with setting up fake evidence, in order to discredit anyone who threatens to expose the conspiracy. One character, an investigative author who starts getting too close to the truth, is infected with a compulsive anti-semitism virus that causes him to lose his reputation. Later on, another character is made to murder by use of a HatePlague. The main character is also infected with a kind of "love" virus that renders him dopey and lovey-dovey with respect to a woman who's an agent of the conspiracy.
* MostWritersAreWriters: ''Queen of Angels'' revolves around a novelist, playwright and poet, who has just killed eight people. Another main character is also a writer.
* MundaneDogmatic: In ''The Forge of God,'' while there are aliens, they are never seen. Instead we see a robotic HordeOfAlienLocusts that they dispatch to destroy us. The sequel, ''Anvil of Stars,'' is not as adherent, while FTL is still impossible, humans travel between the stars at sublight speeds, and develop AppliedPhlebotinum that borders on FunctionalMagic.
* ThePowerOfRock: In ''Songs of Earth and Power'', any sufficiently great piece of music (or art in general) has inherent magical properties. In particular, there's a piece called the ''Infinity Concerto'' which legendarily transported a group of people to another world; later in the book, Mozart ([[BeethovenWasAnAlienSpy yes, the real one]]) improvises another piece to transport them all back.
* PrecisionFStrike: From Darwins Children:
-->'''Kaye Lang''': Give me back my daughter you FUCKHEADS!
* RealityWarper: Bear frequently explores the idea that the observer in fact shapes the observed reality. For example, towards the end of ''Literature/BloodMusic'' the entirety of North America is covered by a biological mass where each cell acts as an individual observer. The sheer concentration of this threatens to cause reality to break apart.
* SecretSocietyGroupPicture: ''Vitals'' has one of these. Late in the story the main characters find an old photo of the evil secret society that's been pursuing them. Cue shocked recognition, as one of the other main characters is in the photo and is revealed to be part of TheConspiracy.
* SelfPlagiarism: Bear has reused some of the science-fiction concepts he invents in one book in completely unrelated books. For instance, ''Moving Mars'' and ''Anvil of Stars'' both use the concept of [[RealityWarper "hacking real life"]], while ''Darwin's Radio'' and ''Literature/BloodMusic'' both use communication and reasoning among microorganisms as major plot points.
* TimeCrash: ''CityAtTheEndOfTime'' is all about a time crash [[spoiler:and an aeon-spanning GambitRoulette to ensure ''something'' will still exist afterwards]].