"Oh, one servant has already been past," said Aleatha without the slightest perturbation.
Nothing, apart from very slight perturbations.
The slightest perturbation would seal it off and convert the tunnel into a physical singularity through which nothing can pass.
Even if a natural traversable wormhole exists, it seems to be unstable to the slightest perturbation, including the disturbance caused by any attempt to pass through it.
It is stable for the moment, but if there is the slightest perturbation, there will be trouble.
But the slightest perturbation will make the pencil fall into a more stable equilibrium position.
Arguments for this hypothesis consider that mental dysfunction can be explained by slight perturbation of the network model's processing.
The model is run thousands of times with slight perturbations to various physics parameters (a 'large ensemble') and the project examines how the model output changes.
This permitted the creation of steady-state solutions, but they were unstable: the slightest perturbation of a static state would result in the universe expanding or contracting.
Lastly when this has been done some slight perturbation will be added to the motions.