Ethereum
$391.57 -3.50%
ETH · 3w

Confessions of a Sharding Skeptic

With final preparations for the launch of Ethereum 2.0 soon to be underway, CoinDesk’s Christine Kim spoke to Cayman Nava, technical lead at ChainSafe Systems and Alexey Akhunov, an independent researcher and software developer about the kinks in ETH’s evolution that still need to be worked out.

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This episode is sponsored by Crypto.com, Nexo.io and Elliptic.co.

The Ethereum blockchain processes about three to four times as many transactions as Bitcoin. It’s still not enough, however, to meet rising user demand for the cryptocurrency and prevent network congestion.  

One of the most highly anticipated fixes to Ethereum’s transaction bottleneck and its lack of scalability is an ambitious software upgrade called Ethereum 2.0. According to Vitalik Buterin, the creator of Ethereum, Ethereum 2.0 will boost network speeds from around 15 transactions per second (TPS) to 100,000 TPS.  

How? The solution is sharding. Cayman Nava, technical lead at ChainSafe Systems, explains sharding as “a natural way to break things up.” 

“If you’re wanting to process a lot of data but you don’t want any one party to be overloaded with that data, you can naturally think of breaking up your problem into smaller pieces,” said Nava. These “smaller pieces” Nava is referring to are called shards. In Ethereum 2.0, 64 shards will be created to break up the transaction load of Ethereum. 

While sharding sounds effective in theory, there are other Ethereum developers who are skeptical about the benefits of this technique in practice. 

“If I were to design scaling [for Ethereum], first I would squeeze as much as possible out of Ethereum 1, which I think hasn’t been done yet, and then after that I would actually introduce sharding l...

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