These loops have a finite lifespan due to decay via gravitational radiation.
While a cancer cell may go on dividing and reproducing forever if it is given the right nutrients, normal cells seem to have finite lifespans.
That comets have finite lifespans has been known for some time.
This allowed Martin Schwarzschild to draw the connection between red giants and the finite lifespans of stars.
Also, any physical computing device has a finite lifespan.
These loops have a finite lifespan and decay (primarily) via gravitational radiation.
Oxygen cells behave in a similar way to electrical batteries in that they have a finite lifespan which is dependent upon use.
Perhaps the best way to begin is to remind you that stars, like living beings, possess finite lifespans.
Because human beings have a finite lifespan, they can commit only a finite number of sins, yet hell is an infinite punishment.
Users have a finite lifespan and normally an even shorter relationship with an organization where a system or application is managed.