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Threads deepens its ties to the open social web, aka the ‘fediverse’
(techcrunch.com)
A community dedicated to fediverse news and discussion.
Fediverse is a portmanteau of "federation" and "universe".
Getting started on Fediverse;
"on its own" is an empty qualifier. Nothing is on its own.
Sure, to be pedantic, I could clarify: "I think the fediverse will realistically never gain mainstream adoption without a large organization with either a massive existing userbase or the ability to invest in large organized marketing efforts."
This could be technically through some Fediverse collective that receives a large amount of donations, but I don't see this as very likely to happen and even with organized marketing efforts there's no guarantee of effectively converting this into adoption.