On November 20, 2017, Leemon Baird, inventor of hashgraph, spoke at Harvard Business School, giving a comprehensive overview of the consensus algorithm, while taking questions from the audience of students. Leemon first compares the four generations of blockchain technology and then gives a deeper dive into gossip about gossip and Virtual Voting.

Timestamps for this video
0:00 Intro
1:03 What is hashgraph?
4:12 How fast is hashgraph?
6:31 How secure is hashgraph? What does asynchronous byzantine mean?
12:23 How fair is hashgraph? (Fair access, fair ordering, & fair timestamps)
16:43 Distributed ledger technology (DLT) generations and their use cases.
26:45 How does the hashgraph algorithm work?
29:59 What incentivizes individuals to gossip?
32:23 Gossip protocol, the fastest most resilient way to get a message out.
33:50 How does hashgraph prevent double spend?
34:43 Consensus for free with math guarantees - gossip about gossip.
40:59 Virtual voting
43:50 How does the number of hashes scale with the number of nodes in the system?
45:53 Can hashgraph be used for a public ledger on a large scale?
48:04 When pitching this technology to enterprises, how do you differentiate hashgraph from traditional blockchain?
50:39 What is the target market that would benefit from hashgraph?
51:26 What is next for hashgraph and why haven't traditional blockchain technologies deployed gossip about gossip or virtual voting?
53:10 What is the value proposition for a game like World of Warcraft?
55:15 How does hashgraph differ from conventional blockchain and how do you get enough users on board for the system to function properly?
57:07 Proof of work and forking.
1:01:08 There are 51% AND 34% attacks on any blockchain/DLT.
1:07:20 How would the cost of a 51% attack differ from a 34% attack?
1:08:32 What kind of transactions per second has hashgraph achieved?
1:10:03 What is the potential (current and future) for the banking industry regarding this technology?
1:12:58 Will there be an ICO?
1:13:45 What is your main product and business model?
1:16:35 Are smart contracts possible?
1:17:24 Will hashgraph swallow up the competition?
1:17:56 Does hashgraph compete with Bitcoin and Ethereum?
1:20:25 Closing and Thanks

Telegram: https://t.me/hashgraph
Whitepaper: http://www.swirlds.com/downloads/SWIR...
SDK: http://www.swirlds.com/download

#LeemonBaird #Hashgraph #GossipAboutGossip