[Stagger and total duration]

Hi,

 

I have a question regarding stagger and the total duration of the animation. This is a screenshot from a video from Carl where he visualises the animation using stagger 

 

gsap.to('.star', {stagger: 1, duration: 3});

 

According to the visualisation, the total duration for the animation of three stars is 3 seconds. But I tried this on CodePen and the output of the animation.duration() is 5 seconds which makes sense:

0 - 3

1 - 4

2 - 5

 

So wonder how he could achieve the total of 3 seconds with this ? gsap.to('.star', {stagger: 1, duration: 3});