Mass adoption of Bitcoin would be a mass surveillance dream due to the lack of on-chain privacy. It also won't be censorship resistant without privacy.
Still not too late for Bitcoin to add serious on-chain privacy via encryption rather than obfuscation, but it's getting there.
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Zcash shielded transactions are the gold standard but they need much better adoption for shielded addresses including hardware wallet support. Could be bolted onto Bitcoin and the community could heavily push for adoption, but there will be people who viciously fight against it.
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There's been a number of inflation bugs in the shielded pool. Also, last I checked, it required insane amounts of RAM and CPU time, and couldn't even do multisig. Bitcoin will adopt a solution when there is a real one
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There have been inflation bugs in Bitcoin. I'm not sure how that's relevant.
Bitcoin leaking people's entire transaction history to the world is a serious privacy weakness and should be treated as one. It'd be terrible for privacy if today's Bitcoin was actually mass adopted.
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You're phrasing it as if there is a solution people are purposely not adopting, but there isn't one. There is ongoing research to find privacy solutions that /do/ work
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It's news to me that the existing privacy solutions in the space such as Zcash shielded transactions, Monero, Tornado Cash, etc. aren't usable. I don't see much innovation or research in that space coming from the Bitcoin world. If they are, who is working on it and where is it?
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Don't consider it to be the same class of approach as shielded transactions. Monero is not quite based completely around encryption and still relies on obfuscation to an extent but they're very slowly working towards it. I don't really see any progress towards it for Bitcoin.
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If anybody reading this is wondering if Zcash is usable, download a wallet from z.cash and try using it. 😁
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And plz report back so the Zcash community can continue to improve its usability. 😊♥️
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I honestly don't know about Tornado Cash. But Zcash adds additional security assumptions (and is more difficult to audit), and both Monero and Zcash make the scalability issue far worse
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Look at Taproot, G'root, FROST, Confidential Transactions, PTLC's, statechains, coinswap
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