Earlier quoted context omitted.
Physicists have access to this if they combine the arXiv with Scirate. https://scirate.com/ Very few choose to, and very little discussion actually happens. There is something of a chicken-or-egg problem, but the site is sufficiently established in one community (quantum info) that if folks wanted to discuss papers they could. So I take it as weak evidence that they just don't have the incentives to do so. If a centr…
arxiv is not open. At least not as open as it should be in my opinion. But I fully agree on the chicken-or-egg problem. The main problem is bootsrapping such web service. I don't think that "anoiting" a forum/web service would be a good strategy. We need to keep open the possibility of a new and better system to take over. My feeling is that two fundamental requirements must be satisfied. 1. Anybody should be able to…
You should be able to select peers (though, maybe you should be given some as well?) and "experts" to follow. You would only see their activity when you want to, but you could also participate in the larger network. As a practical matter of implementation, I think allowing groups to run segregated networks (ie. their own "node") which can later be joined to each other makes sense for getting actual adoption and for reducing development, infrastructure, and support costs.
I think there are likely many problems with such a crude model, but that is where we find ourselves it seems. Waiting to think up something better might be prudent, but that might be difficult without trying something out.