Lovely summary of the projects and people that interested me too. The other person that was great to talk to was @traveller7761 and the work his organisation is doing about using the blockchain (again, steem was the blockchain of choice) to reward social impact of (from/towards?) the UN's 17 sustainable development goals - more at http://impactn.launchrock.com
Also good to meet you, enjoyed our chat on the river cruise :)