If you have been waiting for Ethereum 2.0 anytime soon, you have to wait even longer. The postponed date of this launch in Q1 now won’t be possible.

During the Ask me Anything (AMA) session, Justin Drake, Researcher at Ethereum Foundation said it is “unlikely” that this phase will be launched in this or next quarter if “we want three clients to be production-ready for launch.”

Drake further explained the need for three clients, “Ideally no single client has more than a 50% share of validators.” Parity launched late and never caught up, as such it is now about 80% Geth and 20% Parity, he said.

But he has “95% confidence” that Phase 0 will be launched in July 2020 — the 5th anniversary of Ethereum 1.0. And if the launch doesn’t happen in 2020 “it would be a failure,” said Drake.

Danny Ryan, another remember of the Research Team at Ethereum Foundation is confident that Phase 0 will “certainly launch in 2020,” as audits are out and testnets are “getting stronger every week.”

The launch of the new phase can only happen when two parallel tracks are complete which would take roughly five months. The first one involves deposits that includes building and testing the default deposits UI followed by an audit of the deposits by a third-party and then deploying the deposit contacts and permanently point depositcontract.eth to it.

On the client's side, they will independently work towards production quality through single-client testnets and then multi-client test and final third-party audits.

Even if ETH2 gets delayed further, Ethereum co-creator Vitalik Buterin says they have stateless clients that prepare the eth1 chain for a merger with eth2 and improve scalability independently.

Buterin isn't worried about scaling as he explained the Istanbul hard fork already reduced gas costs of CALLDATA to 16 per byte and increased the theoretical maximum throughput to ~2500 tx/sec.

Diederik Loerakker of the Ethereum Foundation is still confident in Eth1 which he said is “not as dependent on Eth2 and can manage even in the worst case.”

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