Geek culture

The blockchain is a technology based on shared, decentralized ledgers. A ledger is a list of transactions that are copied and saved on several different computers, rather than centralized on a single server. Each transaction (or group of transactions within a given time period) is called a block…

Bitcoin is a very secure and stable crypto-currency; no wonder it's been dubbed “Virtual Gold”. But when it comes to everyday transactions, it's too slow and expensive, and can only process around 10 transactions per second. Many other forms of coin offer better transaction speed and more…