The deformations in spacetime are permanent (hypothetically). The mirrors in LIGO, however, are subject to all the other various things in the environment tuggi

The deformations in spacetime are permanent (hypothetically). The mirrors in LIGO, however, are subject to all the other various things in the environment tugging on them. They return to a state of alignment because of their environment (local gravitational forces, etc.) This "noise" would prevent a detector like LIGO from seeing the permanent changes to spacetime. https://www.quantamagazine.org/gravitational-waves-should-permanently-distort-space-time-20211208/ https://www.quantamagazine.org/gravitational-waves-should-pe... https://news.ycombinator.com/item?id=29485803 https://news.ycombinator.com/item?id=29485803