If you have an unreversible mixer, congratulations. Bitcoin will almost certainly want to adopt it. However, it won't fix fungibility.
When you say that, are you referring to Bitcoin 3rd party development like Dark Wallet? Or the core dev team? I don't think the core dev team would ever implement that tech in to Bitcoin even if it was perfect.
Why would they not want to adopt it? We're talking about Bitcoin as in the open source beta phase project.
I would put the line at 100-1 that the current Bitcoin development team with it's current political situation would ever add such a thing to Bitcoin.
If it's possible for 3rd parties to add it then people will be all over that at light speed. But Gavin et al? I highly doubt that. But maybe I'm wrong. I wonder what everyone else thinks.
And this just highlights one of the most serious issues with Bitcoin as a project. Someone needs control over it but also the vote of the majority should certainly count. This is where Mike Hearns light house project may come into its own, not just funding the devs but breaking them away from the Bitcoin Foundation and also allowing people to show their support for features they would like to see.
If Lighthouse ends up working that way then it could be interesting to see what direction Bitcoin takes. But even then we already have the vested interests of the Bitcoin Foundation and it would take some sort of political upheaval within the Bitcoin dev community to really change the status quo.
I think it was a Mike Hearn interview where he said that Wladimir doesn't even touch the core protocol due to political issues. And he's a PHD who's apparently supposed to be Gavin's successor as lead dev! (edit: I can't find the quote yet though all I've been able to find is that he said Gavin is pretty much the only one who does touch the core protocol. I might have misremembered, not sure. edit2: found the quote, pasted at the bottom)
To be honest though I don't really mind that whole mess since it bodes quite well for our respective 'alternative' choices of curenncy.
Quote from: Mike Hearn via CoinDesk
The only people doing any kind of heavy lifting on the protocol today are people paid by the Bitcoin Foundation. When I say people, what I actually mean is Gavin [Andresen]. There are only three people paid by the Foundation to work on bitcoin, code-wise. And of those, Wladimir [van der Laan] and Cory [Fields] refuse to work on the protocol, partly because of the social issues that have come up.