It’s easy to overlook this… but everything in AI depends on something almost invisible.

Modern transistors are measured in nanometers — where thousands fit across a single human hair.

And yet, your phone contains tens of billions of them, packed into a space smaller than your… pic.twitter.com/yQgbKdDnYN

— Pascal Bornet (@pascal_bornet) 25 mars 2026

It’s easy to overlook this… but everything in AI depends on something almost invisible. Modern transistors are measured in nanometers — where thousands fit across a single human hair. And yet, your phone contains tens of billions of them, packed into a space smaller than your

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