What if your reality was nothing more than a complex computer simulation? And if you were just a program on someone else’s hard drive, how would you know? Who would be controlling your every move?

Unless you, dear reader, are a web-scraping software bot quietly pulling this text into a data-hungry LLM, you’re probably a human. And though you’ve likely never seen me in person, you have good ...

The rapidly-improving speed and versatility of digital computers has mostly driven analogue computers out of use in modern systems, as has the relative difficulty of programming an analogue computer.

When a molecule absorbs light, it undergoes a whirlwind of quantum-mechanical transformations. Electrons jump between energy levels, atoms vibrate, and chemical bonds shift—all within millionths of a ...

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Could the Big Bang have been the launch of a cosmic computer programme? Scotland’s Astronomer Royal Catherine Heymans explains the science.