 Just a reminder that you're listening to Crowd Science on the BBC World Service. I'm Caroline Steele. And I'm Marnie Chesterton. And we're trying to answer listener Simon's question. He asked, how much does the internet weigh? So far, in total, we have 500 million kilograms of modems in people's homes. We have 587,500 kilograms of pops. And we have 12 million tons of cable. And if you add them all up,