That gives this protocol enough security and an attacker can find out the key only with small probability.

To measure these small probabilities, one must be able to repeat a measurement a large number of times.

Although this is possible, such an event has a small probability of occurring, making it unlikely.

Example: I'm not relying on faith in small probabilities here.

This is just a push to see whether you might, with small probability, be marginally interested.

However, this happens with very small probability as we argue next.

However, even if that possibility has a small probability, there are still the four others.

Thus there is a very small probability of no interaction over very large distances.

As suggested above, this is mainly useful with small probabilities.

When the opponent makes war, on the next move, the player sometimes makes peace anyway, with a small probability.