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Ilya Kantor 2021-02-02 16:56:39 +03:00
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# Promise # Promise
Imagine that you're a top singer, and fans ask day and night for your upcoming single. Imagine that you're a top singer, and fans ask day and night for your upcoming song.
To get some relief, you promise to send it to them when it's published. You give your fans a list. They can fill in their email addresses, so that when the song becomes available, all subscribed parties instantly receive it. And even if something goes very wrong, say, a fire in the studio, so that you can't publish the song, they will still be notified. To get some relief, you promise to send it to them when it's published. You give your fans a list. They can fill in their email addresses, so that when the song becomes available, all subscribed parties instantly receive it. And even if something goes very wrong, say, a fire in the studio, so that you can't publish the song, they will still be notified.
Everyone is happy: you, because the people don't crowd you anymore, and fans, because they won't miss the single. Everyone is happy: you, because the people don't crowd you anymore, and fans, because they won't miss the song.
This is a real-life analogy for things we often have in programming: This is a real-life analogy for things we often have in programming: