Bonjour bonsoir, geeks.

• The Science and Art of Practicing —about violin but applies to other instruments, or even non-music activities—, via HN.
• How My Mom Got Hacked, "Welcome to the new ransomware economy, where hackers have a reputation to consider." Via HN.
• On optimism, a comic by Anders Nilsen. Via waxy links.
• Pixel, a dancing light show, dancers + synchronized minimal visuals = beautiful.
• Augmented Hand Series, realtime computer vision manipulation of your own hand. Via waxy links.
• How Software in Half of NYC Cabs Generates $5.2 Million a Year in Extra Tips, good intuition and straightforward data analysis debunking fishy story.