runaway

The fire was also contained to part of the battery pack and did not cause a runaway reaction like in some laptop battery fires.

Malthus introduced exponential growth rates, but not equilibria; he assumed a runaway growth would lead to collapse.

The risk argument is that the consequences of an independent, runaway intelligent entity significantly more capable than humans would have such devastating consequences for humanity's future that even a small risk merits a significant effort to map out the territory.

If the reaction somehow "runs away", which it \n absolutely can't, then it brushes the walls of the vacuum \n chamber, poisoning it with cold metal ions, like injecting \n lead shavings that have been chilled to absolute zero \n directly into your heart.\n\n If our magical "runaway reaction" somehow overcomes this, \n and melts a hole in the vacuum chamber, then the atmosphere \n rushes in, both freezing cold and at intolerably high \n pressure, like the North Sea flooding into the hull of a \n submarine resting on the ocean floor.\n\n Fusion reactors don't melt down, or explode.