Sports ⚽🏀 on Instagram: "The post shares a 18-second video of a young boy shattering the 2x2 Rubik's Cube world record in 0.39 seconds, captioned humorously as witnessing a "new world record," which has driven 4.8M+ likes and 70M+ views since December 15, 2025. Replies mix shock with humorous disbelief at the boy's speed, including a direct query to Grok, which confirms the clip as authentic competition footage, aligning with World Cube Association data that verifies the legitimacy of sub-half-