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What is the most valuable skill to learn right now?

If you are a dev who's interested in web3 but dont know what to dig into, what is the most valuable skill to learn?

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    In my opinion, it is important to begin with general understanding of the blockchain and related technologies. I usually recommend to start with the following topics: 1. Cryptography basics - symmetric encryption, asymmetric encryption, cryptographic digital signature, hashing algorithms. It is impossible to truly understand blockchain without a basic knowledge of cryptography; 2. Bitcoin. It is the first application of the blockchain technology and very helpful for understanding its evolution; 3. Blockchain, consensus algorithms (PoW, PoS), transaction lifecycle. These are the key topics for understanding blockchain technology; 4. Smart contracts and Ethereum. Ethereum is the first blockchain supporting smart contracts. Solidity, smart contract laguage on Ethereum and other EVM chains, is easy to learn and has a lot of resources on the internet; 5. IPFS. Decentralized storage is an important component of many decentralized applications; 6. Zero Knowledge proofs. These are not easy to understand but becoming very important lately. Once you have a good understanding of these topics it will be easier for you to navigate the world of Web3 and choose the area that you would like to learn deeper.