Having nostr + Twitter already feels redundant.
Once enough people have migrated on nostr, I won’t use Twitter anymore.

I still do not understand what bluesky would do better than nostr/Twitter.

Nostr pros : decentralized, free speech, plenty of different clients/experience, using sats as the standard…
Nostr cons : not many people there (yet), growing pains

Twitter pros : network effect, plenty of people there, lot of content
Twitter cons : centralized, fiat standard, no free speech, pay to win

What is bluesky trying to solve ?