> Now, it's going to require some much more serious security guarantee to be used to govern any important organizations (governments, public corporations, etc.).

I don't think that's the real hurdle for scaling up. The issue for large-scale democracy has always been that, because an individual's time is limited, it's very hard for them to make a reasonable appraisal of everyone else's opinion. If these comment threads were merely thousands of posts long, could you read through more than one of them and still have a life? And that's only thousands; the voting population of the US is a bit over 200 million.

I'm really, really looking for the tool that lets you successfully absorb thousands of opinions around an issue within a reasonable time frame, without intermediaries. That's the killer app for democracy.

Good point. Maybe thinking of a debate in steps? Some way of aggregating main positions and then allowing users to frame themselves in these if they want to or post an alternative, not yet aggregated opinion.

One first step might be to filter out all opinions that are contrary to a set of known facts.

Who controls the facts?

That's "Liquid democracy"

No, liquid democracy is still letting other people do your thinking for you.

I believe the challenge is not only security but a successful identity validation protocol. We've been working on different approaches, including looking at blockchain. How to distribute securely id validation is our main concern.