IQ 0

:see also item IQ and Complexity
IQ 0 aka non-sentient has special considerations.
==Basics==
per B15:
:Nonsentient creatures cannot learn skills or have any purely mental traits.
B151 lists Reprogrammable for IQ 0 creatures. It is a mental trait (disadvantage) but not PURELY mental because it is also EXOTIC.
*B124 Bestial is also mental-exotic, though there aren't known examples of IQ 0 creatures with it.
*B160 Vow is mental-normal (forbidden) but B132 Divine Curse can emulate it and is mental-supernatural
==FAQ==
per http://www.sjgames.com/gurps/faq/FAQ4-3.html#SS3.1.5
:IQ 0 means you're a rutabaga. Per p. B15, at IQ 0, you're mindless and unable to act without somebody possessing you and operating you via remote control. You need at least IQ 1 to have a self and be able to perceive and act at all, which includes grunting and making gestures. You need at least IQ 6 to use tools and language – that is, to talk, wield weapons, etc. A human hit with -10 to IQ (making him IQ 0) is essentially a mindless clone body waiting to be possessed.
==Magic==
GURPS Magic talks about how some living things have IQ zero.
M43's Transmogrification mentions it for plants.
M70's Homunculus mentions they have no IQ or HT
==Zombies==
Z71 phrases:
*IQ-10 [-200]: The zombie is a vegetable, either reacting only reflexively or requiring possession by an animator. Also requires Taboo Trait (Fixed IQ) [0]
Aging causes "death" on a failed HT roll for IQ 1, any attribute reducing to 0 causes death for creatures which age.
==actions without choice==
some options for this include:
*taking Uncontrollable limitation on attack advantages
*taking B144 Neurological Disorder (physical disad) which covers "involuntary movements" and 
**B146 Noisy is cited to represent involuntary vocalizations.
***Z66 covers this as Involuntary Utterance
*Odious Personal Habits is classed as a mental disad on B300 so it would be banned for IQ0, but Odious Racial Habits (which the Herecine DOES have) may not be, since how they are classed is never described.
==search problems==
looking for IQ 0 in a PDF will also return "IQ+0" causing a lot of false positives for skills bought up to IQ
==Magic Based on Other Attributes==
F161 notes: first for HT
:Any living thing, even a tree, may be capable of casting spells. Nonsapient life forms will do so only by instinct, and IQ 0 life forms only as their own physiological state dictates.
then for Per:
:Nonsapient life forms may be able to cast spells; IQ 0 life forms such as most plants will not.
==quotes==
Kromm in 2006 at http://forums.sjgames.com/showthread.php?p=187749&highlight=Allies#post187749
:an IQ 0 Ally with Minion is nothing but the canonical way to buy an extra body in 4e.
==See also==
*Herecine
*insensate
*Mindless
*mental IQ
*physical IQ
*Revenants
Category:Rules