in exponential/policy.go [234:244]
func defaults() Policy {
// progression will be:
// 100ms, 200ms, 400ms, 800ms, 1.6s, 3.2s, 6.4s, 12.8s, 25.6s, 51.2s, 60s
// Not counting a randomization factor which will be +/- up to 50% of the interval.
return Policy{
InitialInterval: 100 * time.Millisecond,
Multiplier: 2,
RandomizationFactor: 0.5,
MaxInterval: 60 * time.Second,
}
}