Why do more seeds make torrents download faster?

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I understand the basic concept that torrenting means transferring files to and from host computers (seeds) and recipient computers (peers) in small chunks. What I don’t understand is what would make this process faster between many seed computers as opposed to just one computer transferring it’s complete file to another computer.

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7 Answers

Anonymous 0 Comments

I think I would try to explain it to 5 year old me like this. Imagine you want a copy of a book, but must get the pages via physical letter. Every letter fits let’s say 10 pages. Then let’s assume that one person can send one letter per day, because the post guy won’t accept more letters.

For a book with 100 pages, you need 10 letters with 10 pages each, right? So if you only had one person sending you the letters, they would need ten days to send off everything.

If you have two people that each send different portions of the book, the time halves to 5 days. 5 people could do it in two days and ten people in one day.

Now exchange pages with data, letters with packets, person with seed, post guy with upload rate and days with a much shorter timeframe.

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