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Comment by fps_doug | Hacker News Reader

How prevalent is that? Some nerds doing this is a drop in the ocean. Rather my bet would be on Youtube as the hungry beast that can't get enough storage. There's a loooooooot of videos that have single digit views yet need to be accessible at any time, instantly. Video is large. Doesn't youtube even keep the original file nowadays?

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In my experience, this is super common. Lots of average computer users send video clips, uncompressed 48 megapixel photos from their cell phones, PowerPoint presentations with embedded videos and 48 megapixel images, pdfs, and on and on. At the company where I work now several people have a 1MB gif of the company logo that they put in their signature.

Combine that with Gmail telling users for years that they had plenty of space, so there was no need to ever delete anything, and people believed it. Now you have a decade of emails with giant attachments or embeds that may or may not ever get looked at, and that keeps growing.

Deduplication solves that problem. There is only one (or very few) instance(s) of that gif on Google servers. That's why encryption will not be available anytime soon. Storage requirement would explode.

You can do deduplication and encryption. The harder part is how to make it paranoid-level-privacy-friendly.

Sounds like we need a way to encode arbitrary data into video that can survive lossy compression. Youtube filesystem?

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