What is the ‘digital divide’? Zendaya grew up in it. And she wants it closed.

For Amanda Acevedo, getting on the honor roll entailed fighting through a lot of physical ache .

The 10 -year-old from East Harlem, New York, didn’t have a dependable computer at home or school to complete her assignments in the evening. In order to keep up in class, she was often leave behind no choice but to write out entire essays utilizing her thumbs on her mother’s cell phone.

Can you imagine?

Rory Kennedy couldn’t — until she witnessed it herself.

“[ Acevedo] would sit there and you would hear her thumbs cracking and she would talk about it being painful, ” explains a dumbfounded Kennedy, director of the cinema, Without a Net: The Digital Divide in America, ” which features Acevedo’s story.

I’m speaking with Kennedy at the documentary’s New York Film Festival premiere on Oct. 3, where a number of the film’s advocates — most notably, “Spider-Man: Homecoming” star Zendaya — rallied behind its cause. “I thought, my God, ” Kennedy continues, as we chat a few minutes before her film debuts to a full house. “We are making it physically painful for poor kids to learn in this country.”

“Without a Net” shines a light on the discrepancies between the haves and have-nots when it comes to technology in our public schools.

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