[jkepler]

Better to build strong privacy by default into the one crypto with an 11-year track record for withstanding all attacks against it's network: Bitcoin. Of course, since consensus changes are really hard, and to preserve the 21 million coin hard limit, I suspect strong privacy will necessarily be built on layer 2 technologies like the Lightning Network. What's needed, and what Austrians (by citizenship or economic theory) want, is digital cash with real privacy.

[xiphias2]

There's a consensus in Bitcoin that the main next step towards better privacy is using Schnorr signature, but in the last few years there were multiple security issues found in the Schnorr signature based multisig protocol (MuSig).

After each improvement the devs prove the security of the protocol and present it in a cryptography conference, asking for peer reviews, that's why it's moving so slowly (which is great).