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For fictional substances known to man, I would pick red matter (from Star Trek, a drop could turn a planet or star into a black hole) or Ice9 (from Cat's Cradle
by gmuslera 4y ago
For fictional substances known to man, I would pick red matter (from Star Trek, a drop could turn a planet or star into a black hole) or Ice9 (from Cat's Cradle, a form of solid water that would turn all water in contact with it into Ice9). A very small mass of them is enough to kill all life in a planet.
I suppose the next one in the scale is grey matter, that with a bit more than a Kg could kill all life in the planet in the right conditions.
- gs17 4y agoThe game 999 has an even worse version of Ice-9 hypothesized, which doesn't even need to come into contact with other water to convert it all.
- kadoban 4y agoSome theorized variations of https://en.m.wikipedia.org/wiki/False_vacuum_decay https://en.m.wikipedia.org/wiki/False_vacuum_decay are essentially an unstoppable bubble of complete destruction (not even known physics remains intact) spreading in every direction at the speed of light.
- hinkley 4y ago> A number of theories suggest that cosmic inflation may be an effect of a false vacuum decaying into the true vacuum. The inflation itself may be the consequence of the Higgs field trapped in a false vacuum state. Basically the Big Bang may be younger than the matter in the universe.
- orlp 4y agoStrange Matter (https://en.wikipedia.org/wiki/Strangelet https://en.wikipedia.org/wiki/Strangelet) is conjectured to convert regular matter into it upon contact.
- chasil 4y agohttps://m.youtube.com/watch?v=p_8yK2kmxoo https://m.youtube.com/watch?v=p_8yK2kmxoo
- CatWChainsaw 4y agoBecause prions weren't enough horror on their own!
- butlerm 4y agoAnything is possible in fiction of course, but it is hard to take a story seriously that uses a material whose properties would be contrary to the laws of physics as a plot device. Either you have a material so unstable that galaxies would never form or something thermodynamically impossible or both.