I jumped on the hashgraph train ealier this year and since then I haven't looked back. 8 tracks were really cool technology when they were first introduced. You could for the first time take your music with you everywhere, even play it in your car, and they were necessary technology for the development of cassettes and digital recording. I believe the Bitcoin and then the Ethereum blockchain were necessary to what is coming next and just as the 8 track they will eventually become redundant. I've researched Hedra, Swirlds and now Mingocoin. Mingocoin has an Airdrop going on until the end of May, 100 coins plus 200 coins per referral. They use the hashgraph to power a Social Media messaging aggregator for steemit, facebook, twitter, skype and others are on the roadmap. Sending a monetary transaction will be as easy as sending a text message. I'm really excited about this coin and the technology behind it. In my opinion, the top features of hashgraph are...fairness of order (necessary for games and auctions), security (ABFT), speed (250K transactions per second TPS) and no forking.