Motivate

sample avg 3.5

sample avg 3.7

sample avg 3.3

sample avg 3.0

sample avg 3.6

sample avg 3.9

sample avg 3.6

sample avg 3.6

sample avg 2.9

sample avg 3.7

sample avg 3.0

sample avg 4.1

sample avg 3.1

sample avg 3.1

sample avg 3.1

sample avg 3.8 · The Crystal Method

sample avg 3.4