⚫ How The Black Point Message Crashes Android Apps

"_If you touch the👇black point then your whatsapp will hang_", says the message that's being sent around, and it's right. It's a text rendering bug, the same as many others -- which isn't interesting. But the characters it's using, Unicode RTL and LTR marks, are worth knowing about. Thanks to everyone who suggested this subject! The Unicode Bidirectional Algorithm: http://unicode.org/reports/tr9/ 🟥 MORE FROM TOM: https://www.tomscott.com/ (you can find contact details and social links there too) ❓ LATERAL, free weekly podcast: https://lateralcast.com/    / lateralcast   👥 THE TECHNICAL DIFFICULTIES:    / techdif