Ethereum Raiden Network Deep Dive | Simply Explained & Illustrated
From the earliest days of blockchain technology, the main proposed use case has been a peer-to-peer version of digital cash. This system allows for online payments to be sent directly from one person to another, without the need to involve a financial institution.
(Note this is 7 days before Constantinople Hard Fork. Up 15% last day, and 55% last 30 days)