Hacker News on 22 December 2019

• UnDraw: Open-source illustrations for every project you can imagine and create
• Show HN: Angeldust – a fast and efficient video game
• Ask HN: Best Talks of 2019?
• Autonomous DeLorean drives sideways to move forward
• How Do Bullets Work in Video Games?
• NSA's Backdoor Key from Lotus Notes (2002)
• Apple's products are getting harder to use, ignore principles of design (2015)
• Show HN: Local Node.js app to save everything you browse and serve it offline
• Fashionable Problems
• People who tend to be optimistic are likelier to live to 85 or more: study