Although it’s possible to draw comparisons between almost any two blockchain development platforms, comparing Ethereum with Polkadot is almost an inevitability. They use a similar architecture and proof of stake consensus to achieve scaleability. This is not only because Vitalik Buterin
and Dr. Gavin Wood have a common history in Ethereum.
Polkadot and Ethereum are Entering the Final Stretch of the Runway for Chain Supremacy
The coming year promises to be a significant one for both networks. Ethereum has been working on a number of improvements in advance of the “merge”, which will take place when the Ethereum main chain joins with the proof-of–stake Beacon network. Ethereum will then move entirely to proof of stake and abandon its proof-of work consensus. As the Beacon chain is expanded, more upgrades will be possible. These additional chains or shards are intended to increase scalability.
Although the timelines are a bit unclear, it appears that Polkadot will reach its next major milestone before Ethereum merges. ‘Parachain auctions‘ are the process of awarding the first shard slots on Polkadot, a step that Kusama, Polkadot’s experimental “canary network,” recently achieved.
If it is only a matter of time before Polkadot does the same, then we can expect the network to be fully operational and supporting a variety of uses cases by the end of the year.
A Potted History
For their part, both founders have always tried to emphasize that they don’t compete with each other. Buterin and Wood have a lot in common. Both are core members of the team that cofounded Ethereum. Dr. Gavin Wood invented Solidity programming language, and Parity Technologies has been an important technology engine for Ethereum. Wood founded the Web3 Foundation which supports Polkadot’s development.
He left his position as Ethereum’s Chief Technology Officer in 2015, having already proposed a new kind of infrastructure that would level up the newly launched smart contract platform into a more robust and scalable platform. Tellingly, Wood didn’t mention Buterin in his final Ethereum blog post, despite name-checking several others.
While Wood and Buterin were reluctant to discuss the rival projects, others have been more open about their opinions. Peter Mauric, Head of Public Affairs at Parity Technologies, recently addressed the comparison, commenting on Ethereum’s shortcomings and referring to the smart contract platform as a “proof of concept” which had provided the education necessary to build Polkadot.
Clash of Titans
After three years of development, Polkadot was launched on mainnet last January. It’s been in operation since the parachains were operational and has not had any applications. However, it has received a lot of interest. Polkadot promises true interoperability among applications running on different chains.
The Ethereum team has been working hard on an upgrade to Ethereum 2.0 since Polkadot’s inception. The two platforms have many technological similarities. Both platforms use a proof-of-stake variant. In Ethereum’s case, it’s an open validator network where anyone can join with the requisite minimum 32 ETH stake. Polkadot’s Nominated proof-of-stake allows DOT holders to stake DOT in order to nominate validators.
Both platforms use sharding for scalability. This connects sharded chain to a central network security-controlling chain. Ethereum 2.0 will also eliminate Solidity and the Ethereum Virtual machine in favor of a web assembly languages called eWASM. Polkadot, despite being Gavin Wood’s invention, is also designed for standard web assembly languages. This opens smart contract development up to a larger global pool of developers who are familiar with general languages such as Rust, C/C++, and Go.
Of course, these similarities could be just a coincidence. Gavin Wood feels that Ethereum 2.0 is very similar to his creation.
On-chain vs. Off-chain Governance
There is one crucial difference between these two platforms. Although consensus is achieved on-chain, Ethereum’s governance has been an off-chain issue. Seemingly in light of Ethereum’s experience with contentious hard forks, Polkadot has shunned this model in favor of a forkless model of on-chain governance.
It’s important to remember that both on-chain as well as off-chain governance come with their pros and cons. It will be interesting to see how the different approaches compare.
So two visionary founders and two ambitious roadmaps. Two platforms that are comparable. But there is one crucial difference. Polkadot was developed from scratch for five years. It has been able to test and build everything twice, once on the testnet and again on Kusama. It will be a fresh start when Polkadot launches its parachains.
While this feat is not easy, the Ethereum team faces a much more difficult task. They will need to change the engine of a moving vehicle in order to make an analogy. This simple fact explains why it could take seven years for Ethereum to reach proof-of-stake. It will take even longer for the network to achieve the level of scaleability that its supporters have waited so patiently.
By that time, who can guess how fast adoption will have accelerated on other networks?
Nobody can know what is going on inside Vitalik Buterin’s head. To use the vehicle analogy, it is more appealing to jump into a brand-new sports car than to try to drive an old jalopy down the freeway at top speed. It’s hard to imagine Vitalik Buterin disagreeing with Polkadot as he watched the development of the vehicle.
Which blockchain do you think will come on top — Ethereum or Polkadot? We’d love to hear from you in the comments below.
Image Credits: Shutterstock, Pixabay, Wiki Commons, Forbes
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