Ethereum has given completely new opportunities for creating decentralized projects and startups based on blockchain and smart contracts.Before the advent of Ethereum, developers needed to create a new blockchain for each new application. 👎 After the launch of Ethereum, this need has disappeared: now you can create many different blockchain-based applications on one platform. 👍 Moreover, different programming languages can be used to write them.To launch a decentralized application, a programmer just needs to write the program code, put actions certain into it and upload it to the Ethereum blockchain. After that, the application will automatically run on various remote nodes.One of the foundations of Ethereum is “smart” or smart contracts, which are a computer algorithm that ensures that contracts are carried out within the blockchain.Smart contracts make it possible to safely exchange any valuable assets (money, shares, property, etc.) directly without the participation of intermediaries.🙍♂️❌It is smart contracts that underlie all ICOs, guaranteeing the automatic transfer of tokens to investors.Thus, thanks to Vitaly Buterin and his team, the creation of blockchain-based decentralized applications has become easier and more affordable.The possibilities of the Ethereum blockchain are much wider than those of Bitcoin, the main problem of which is scalability. The thing is that now the cryptocurrency world is significantly different from what it was in 2009, when Bitcoin was created. The number of network users is already in the tens of millions. 👨👨👦The growth of the user base is predictably accompanied by an increase in the number of transactions. And the reality is that the bitcoin network in its current state cannot process all transactions fast enough.The generation time of a new block in the Bitcoin network is 10 minutes, in the Ethereum network - 15 seconds.And if the main purpose of Bitcoin is a digital currency and a platform for settlements and storage of funds, then Ethereum, in addition to all this, is also a universal platform for creating Dapps based on smart contracts.The launch of Ethereum "revived" the entire cryptocurrency world, showed the versatility and flexibility of the blockchain and opened it to new areas.