Hacker News on 19 July 2019

• Argdown
• History and Effective Use of Vim
• Show HN: I built a service to discover rapidly growing Google search topics
• Org-mode on web, built with React, for mobile, synced with Dropbox, Google Drive
• Patrick Winston has died
• A Differentiable Programming System to Bridge ML and Scientific Computing
• Dropbox silently installed new file manager app on users’ systems
• Slack Security Incident
• A personal story about 10× development
• Ask HN: Are Lucene/Solr/ES Still Used for Search?