RSS is one file; ActivityPub is a server
Quote
if I have an RSS feed, all I need is I need just one file. If I have an activity pub relationship to the world, I need Need a server? Yeah. Yes. And that can Can I need a server that can that can speak and listen both.
Episode 177: KatGPT (episode page, opens in a new tab) 00:54:48 (play audio from this timestamp, opens in a new tab)
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Summary
With RSS, all you need is one file. An ActivityPub relationship with the world needs a server that can both speak and listen. RSS made sense when servers and bandwidth were expensive, and it still does.