What does HT 0, exactly, mean in game terms?
What HT 0 means is that your HT roll is against 0. Almost all crippling injuries will be “lasting,” and about half will be “permanent”; any major wound in combat is likely to knock you out (failing “0 or less” by five or more is about 98% likely); almost any lethal wound in combat will kill you (unless you roll 3-6, see the other FAQ entry); and afflictions, diseases, poisons, etc., will have their way with you. If you’re at HT 0 for a long time, failed HT rolls to recover HP and resist the ravages of aging will kill you eventually. However, HT 0 doesn’t mean instant death or even an instant coma . . . it just means inevitable infirmity, illness, decrepitude, and death unless you live in a bubble. Also, mostly on machines: Numerous rules say, “Roll vs. HT or bust!” If a machine suffers enough damage to break down (p. B483) or fall apart (p. B484), is exposed to harsh conditions that could foul it (p. B485), is cinematically redlined (the “extra effort” option on p. 160 of Powers), is F
