If you're even moderately interested in #federation etc., and the costs thereof, then I can only recommend this #Bluesky thread by @hazelweakly (one of the admins/makers of the #Mastodon instance Hachyderm).
Those numbers, bloody hell. Interesting conclusion, too!
Hazel Weakly (@hazelweakly.me)
People don’t understand how important this is to scaling decentralization. Even the data isn’t that big of a deal. But the traffic? Game changer For reference: on mastodon, hachyderm goes through 1TB+ of egress data a day. The network charges for that alone would bankrupt most people [contains quote post or other embedded content]
Bluesky Social (bsky.app)