Counting rapidly is an art form, really. It's all about the rhythm, the flow, the sheer velocity of numbers.
Imagine a world where 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, ... 16 to 20!
Or, for the truly advanced practitioner, 21 to 100!
But be warned: rapid counting can be hazardous to your mental health.