system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How does YouTube.com (aka Google), manage it's storage and bandwidth costs when thousands of videos are uploaded and stored daily? Do the advertisers actually cover its costs?
gpt
Do advertisers actually cover the costs? Yes. That's the business model of google. That's how they set their prices.

How does google do it? They have a lot of infrastructure, and a lot of smart people working for them who spend all their time at work coming up with ways to reduce the amount of bandwidth used, and the amount of computation required to produce results. They've built their whole company on this kind of technology, and they're among the best companies in the world for dealing with huge data sets, and storing them safely and efficiently. It's the reason that Google the search engine was able to out compete it's competitors in the early days. In most cases, it was better at finding related results, and faster too.

Edit: A couple of people have pointed out that Youtube is loosing money, but that Google as a corporation is able to cover the loss.