"What's the point of the circuit breaker? Cases will just fall and then go back up again!"
Yes but the point is they never reach the level they would have without the break, because exponential numbers.
With circuit breaker:
2, 4, 8, 16, 32, 64
2, 4, 8, 16, 32, 64
2, 4, 8, 16, 32, 64
And so on
Without circuit breaker:
2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768
*not actual case numbers