Ethereum 2.0 is expected to roll out during 2022. Among new innovations is sharding, which is the blockchain equivalent of a processor with multiple cores/threads, allowing for parallel processing.
Ethereum is currently heavily bottlenecked, transactions are expensive and slow because it is at its processing limit. Sharding will heavily increase the throughput of transactions and increase the processing power, but it will take a while.
I am a Solidity developer, so I write smart contracts, I see on a daily basis how expensive and slow programming and using "single-core" (not sharded) blockchains can be.
Sharding allows blockchains to scale easily. Of course, we have Solava and Avalanche that without threads can process thousands of transactions per second, and for now, that gets the job done efficiently. The question is that it doesn't matter that we are not using those thousands of TPS right now, of course, those blockchains are overkill today and are not getting bottlenecked, but for how long will it be that way? Thinking about that I realized that sharding is extremely important. Even if we do not use 100% of the blockchain, it would give me some peace of mind to know that, if needed, the blockchain will scale automatically.
So I took a quick search to find alternatives that have already implemented sharding, and alternatives I did find!
# Harmony one
The first blockchain that I have found was the one that interested me the most! It is called "harmony". Harmony already implements sharding.
The most interesting feature of this particular blockchain is that it supports Solidity programming. As a Solidity programmer, because the blockchain runs the Ethereum Virtual Machine, it makes it easy for me to develop.
# Zilliqa
The second blockchain I have found is Zilliqa. It also has sharding, but sadly it seems to use a different programming language, Scilla instead of Solidity, so I would have to learn how to code with Scilla if I were to use this blockchain.
Despite this drawback, it also seems like a very scalable blockchain. In Ethereum right now it does not matter if we have 10 or 10 thousand nodes, they all have to process the same transactions so they are slow. Zilliqa grows as the number of nodes grows, so the more nodes the faster it runs.
I still prefer coding and deploying on Ethereum. If someone hires me to develop on Ethereum I feel much more comfortable because I am more familiar, but the number of jobs I have been getting on Ethereum has been decreasing because the costs to use their blockchain have been growing exponentially. Most recently Binance BSC has been the blockchain I have been working with the most.
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