Mount Everest's growth, about 2 mm/year, is driven by isostatic rebound from the Arun River's erosion. This surprising force also impacts neighbouring peaks like Lhotse and Makalu.

Web story: Kangchenjunga (8,586 m) was believed to be the highest mountain in the world from 1838 until 1852, when the Great Trigonometrical Survey of India identified Mount Everest as higher.

Climbing Mount Everest remains a significant financial commitment, with costs ranging from $30,000 to $220,000 in 2024. Major expenses include permits, gear, Sherpa support, and logistics. Indian climbers face expenses between ₹25 lakh to ₹1 crore.