What if the rules of the universe bent, just for a moment?
WhatIfLab takes hypothetical scenarios — a spinning Earth that stops, a sky with two suns, a body that never sleeps — and works out what would actually happen, using real physics, biology, and earth science. No filler, no doomsaying for clicks.
If —
Earth Lost Its Magnetic Field
Then —
Earth would not suddenly lose its atmosphere or become uninhabitable. The magnetic field deflects charged particles and helps protect near-Earth space, so satellites, astronauts, radio systems and electrical infrastructure would become more exposed to solar activity. Some atmospheric loss would increase over very long timescales, but the exact rate is uncertain and depends on solar conditions and atmospheric processes.
Read the full analysisExplore by field
Latest case files
What If Earth Lost Its Atmosphere?
What would happen if Earth's atmosphere vanished? Explore pressure, boiling water, temperature, sound, oceans, radiation and human survival in a scientifically grounded scenario.
What If Earth Had No Seasons?
What would happen if Earth had no seasons? Explore axial tilt, climate, agriculture, ecosystems and the difference between a zero-tilt Earth and other ways seasons could disappear.
What If Earth Had Rings Like Saturn?
What would happen if Earth had rings like Saturn? Explore how an Earth ring system could affect the sky, climate, satellites, tides and human life.
What If Jupiter Became a Star?
What would happen if Jupiter became a star? Learn why Jupiter cannot ignite like the Sun and how a genuinely stellar Jupiter-mass transformation would affect the solar system.
What If the Moon Were Twice as Massive?
What would happen if the Moon were twice as massive? Explore tides, Earth's rotation, lunar orbit, coastal ecosystems and long-term changes to the Earth-Moon system.
What If Humans Could Never Feel Pain?
What would happen if humans could not feel pain? Explore congenital insensitivity to pain, injuries, disease detection, lifespan and the biological role of pain.
What If Humans Could Breathe Underwater?
What would happen if humans could breathe underwater? Explore ocean settlement, pressure, body temperature, communication, evolution and the limits that breathing alone would not solve.
What If Humans Never Aged?
What would happen if humans stopped biologically aging? Explore mortality, population, reproduction, medicine, economics and the difference between agelessness and immortality.
What If All Bees Disappeared?
What would happen if all bees disappeared? Explore pollination, food crops, ecosystems, agriculture and why humans would not simply run out of all food overnight.
What If All Mosquitoes Disappeared?
What would happen if all mosquitoes disappeared? Explore malaria, dengue, food webs, pollination, ecosystems and the uncertainty around replacing an entire insect group.
What If All Whales Disappeared?
What would happen if all whales disappeared? Explore marine food webs, nutrient cycling, carbon storage, fisheries and the ecological role of whales.