294: DTF:HN for October 21, 2026

Your Daily Tech Feed covering the top 10 stories on Hacker News for October 21, 2026. Featuring: Eight Bits of Trust; eMudhra's CA keys cracked in milliseconds, The 1.5°C goal of the Paris Agreement is no longer viable, The Future of CSS, Upcoming critical PHP security release (CVE-2026-109618 / -109619), Whatever Happened to Fire Escapes, and more.

Stories covered:

1. Eight Bits of Trust; eMudhra's CA keys cracked in milliseconds
   (Article | HN Discussion | 🎧 0:23)
2. The 1.5°C goal of the Paris Agreement is no longer viable
   (Article | HN Discussion | 🎧 3:40)
3. The Future of CSS
   (Article | HN Discussion | 🎧 7:23)
4. Upcoming critical PHP security release (CVE-2026-109618 / -109619)
   (Article | HN Discussion | 🎧 10:24)
5. Whatever Happened to Fire Escapes
   (Article | HN Discussion | 🎧 13:46)
6. Show HN: SimCity, but with Permits
   (Article | HN Discussion | 🎧 16:53)
7. Muse exposes users' personal and business secrets when they share conversations
   (Article | HN Discussion | 🎧 19:50)
8. The Decoherence Trap
   (Article | HN Discussion | 🎧 23:03)
9. eMudhra intermediate CA compromise
   (Article | HN Discussion | 🎧 26:12)
10. Way to Play Super Mario 64: On Apple Vision Pro
    (Article | HN Discussion | 🎧 29:10)