N3GOV-35: Simplify North Star metric and set Q2 2023 goals

This would be a governance proposal to modify the North Star metrics to:

• Total Value Secured (TVS) within Nation3's legal system: Net value of all tokens that have been used/are currently used as collateral for a Nation3 agreement, expressed as BTC.

And the goal for Q2 2023:

• TVS >50 BTC. That's 3x from today's value.

Rationale

Product-market fit for Nation3 agreements are Nation3's bet on sovereignty and sustainability. To build a nation we will need to be sovereign and self-sustainable. Nation3 agreements achieving strong product-market it enables both.

Discussion

In this proposal, I intentionally left out number of active citizens for the moment. The main reason is lack of compelling proposals to organically increase such number. Although there's been progress to track that number (with the Citizen Directory), I don't think that just automating SourceCred sign ups will lead to a great surge in citizen activity.

Instead, maybe building something worth governing (the jurisdiction) will naturally lead to more active citizens. I had the same experience at Aragon pushing DAOs: no one cared about DAOs until DeFi, where protocols suddenly controlled billions of $ and therefore governing them became valuable.

So maybe achieving PMF comes before trying to optimize for citizen activity.

PR at https://github.com/nation3/gov-proposals/pull/43/files and https://github.com/nation3/law/pull/3/files