Here is a short piece reflecting on the essence of a video like that: The Sound of Pure Joy

It usually starts with a "shhh" toward the camera and a pair of hands creeping into the frame like slow-moving spiders. Then, the pounce.

In an instant, the room is filled with that unmistakable, breathless melody: the toddler belly laugh. It’s a sound that exists entirely in the present—unfiltered, infectious, and impossible to fake. You see the frantic kicking of tiny socks, the squirming attempt to escape that is actually a plea for more, and the wide-eyed wonder of a child discovering that their own body can betray them with happiness.