“When I came up with Ethereum, my first thought was, ‘Okay, this thing is too good to be true.’ As it turned out, the core Ethereum idea was good—fundamentally, completely sound.”
—Vitalik Buterin
You know what the Ethereum architecture looks like, and you have practiced enough basic Solidity programming. Now it’s time to learn some advanced topics such as how to interact with services outside the blockchain by invoking calls through Oraclize, how to optimize gas usage by saving data to IPFS storage, and how to ...