“users upload 400 hours of video each minute” – [report on Youtube from 2017](https://mashable.com/article/youtube-one-billion-hours-of-video-daily)
> Are they adding additional storage every day?
yes; hard disk sales [peaked around 600,000,000/year](https://www.statista.com/statistics/398951/global-shipment-figures-for-hard-disk-drives/) which is about 1.6 million/day. NB. while the number has gone down, each one stores more now than 12 years ago, and SSDs have taken over a lot of the storage market.
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