Why phase shift loop works

Hey more of a comment, but the reason why phase shift loop works with key frames 2*pi, 4*pi, etc is the exact same reason why setting key frames at 360, 720 works. The units are just using radians instead of degrees. So you don't actually care about positive multiples of pi, you care about multiples of 2*pi, meaning -2*pi works the same as -360 from the other examples.