What If You Kept Digging and Couldn't Stop?

You grab a shovel in a backyard outside Chicago and start digging… and you can't stop. Pipes, a mammoth tusk, a subway train, a hidden cave, an abandoned mine, the deepest gold mine on Earth, the deepest hole ever drilled, diamonds, a sea of liquid iron, the centre of the planet — and then the other side. No narration — just you, the shovel, and the planet. WHAT'S REAL • Mponeng gold mine in South Africa is about 4 km deep and rock there is around 60 °C; ice slurry is pumped down to cool it. • The Kola Superdeep Borehole reached 12,262 m with a hole about 23 cm wide; drilling stopped in 1992. • Earth's crust under continents is roughly 30–50 km thick; diamonds form around 150 km down. • Ringwoodite and water-bearing minerals exist in the mantle transition zone (~410–660 km). • The outer core is liquid iron starting about 2,890 km down; its motion generates Earth's magnetic field. • The inner core is solid iron, about 5,200–5,400 °C — similar to the Sun's surface. • The point on the opposite side of the Earth from Chicago is in the Indian Ocean. • Water can stay trapped in deep rock for over a billion years (found in Canadian mines). WHAT'S MADE UP • No human (or shovel) could survive any of this: heat, pressure and lack of air would stop you within the first few kilometres. • The speed of digging is impossibly fast for storytelling. • The cave, the specific mine, the train line and the backyard are illustrative. • Weightlessness at the centre is real in theory, but you'd be crushed by pressure long before. #WhatIf #Science #Space