Reply by Jorge G.

I did look at the video, as I stated the “slow” motion is an effect of the high speed photography. It looks as if he was moving the finger very slow when in real time it was fast. I don not know how can I explain it any clearer.

Think of the film made of a bullet piercing a balloon, it looks like it is going slow, but in reality you are not even able to see the bullet.

-- Just because you’ve always done it that way doesn’t mean it’s not incredibly stupid.