The 500-Crore Soda Can: Why Mega-TBMs Get Swallowed by Himalayan Mountains: Santa toasts the arrival of a massive Tunnel Boring Machine, boasting that high horsepower will slice through the Himalayas in record time. Banta drops a geotechnical reality check on “squeezing ground” and crushed fault gouges, citing real-world disasters from Dulhasti to Neelum-Jhelum to show why active tectonic mountains crush rigid mega-machines into scrap metal.