So, in a similar fashion, we invited taxi drivers, Uber drivers, passengers, rural communities and others to chime in online. As a rule, we said: You have to get through to the other group. When new ideas win more than 85% cross-group approval — when they cross the bridge — they become the agenda for ministerial consideration. With the Polis method, we ended up with a very coherent set of proposals: all Uber cars must become taxi fleets, but the taxi medallion is changed so that you can have surge pricing； you do not undercut existing taxi meters； you have fair insurance rules； you must serve rural areas — and the rural service came from co-ops using the same dispatch app — and so on. It turned out nobody disagreed with those things. They had simply been buried in the anti-social corner of social media: reasonable ideas, hidden by a recommendation algorithm that prioritises engagement. By switching people from anti-social media to pro-social media, we tapped into the polarisation and overcame it.