But some scientists now claim that humanity, the Earth, and everything else in the universe are really part of a giant holographic projection.

That said, considering that a simulation of Earth would be wildly complex to implement and run, functionally hacking the system ourselves to add reality-altering widgets would probably be impossible.

My wife said she would like for a hologram of her to appear whenever she was late to some appointment, and then disappear when she actually arrived, so that nobody would know she had been absent.

Simulation sheds light on Earth's magnetic field generation while advancing neuromorphic computing. by Simon Schmitt, Helmholtz Association of German Research Centres.

Underwater green-light environment after the emergence of cyanobacteria and photoferrotrophs in the Archaean era. Credit: Nature Ecology & Evolution (2025). DOI: 10.1038/s41559-025-02637-3 A team ...