And the preamble has a language that, to a certain extent, replicates a legal principle of the unchangeability of circumstances that were basis for the treaty.
WHITEHOUSE: Signing of New START Nuclear Arms Treaty with Russia
2.
The second, the unchangeability bias, is the idea that when we face large decisions that seem to be immutable (getting married, having kids, moving to a distant place), the permanence of these decisions makes them seem even larger and more frightening.
WSJ: Dan Ariely on How to Get Your Kids to Move | Ask Ariely