With two types of digital transaction system as main drivers, the concept of cashless is transforming how business activities are carried out. The first type, known as an integrated platform, involves a trusted third party (e.g., AliPay, WechatPay, etc.) to help conduct payment transactions. In contrast, enabled by Blockchain or other distributed ledger technology, the second type cuts out the middleman and uses decentralized crypto-currencies (e.g., Bitcoin, Ethereum, etc.) to allow Peer-to-Peer transactions. What are the pros and cons of each system? Which one will fascinate Hong Kong more? Let’s explore.