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![MarioNawfal Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::1319287761048723458.png) Mario Nawfal [@MarioNawfal](/creator/twitter/MarioNawfal) on x 2.3M followers
Created: 2025-05-03 05:10:00 UTC

🇺🇸 TRAINING AI AT LIGHTSPEED—NO ELECTRICITY REQUIRED

Penn engineers just cracked the holy grail of AI chips: teaching light how to think. 

For the first time, a chip can train deep neural networks using only beams of light—not electricity. 

That means real-time learning with almost no energy burn.

The breakthrough? Nonlinear math—what makes AI actually learn—used to be impossible with photonic chips. 

Now? 

Light reshapes light inside a special material, letting the chip reprogram itself instantly. 

No moving parts. Just photons doing calculus at warp speed.

It hit XX% accuracy on key tasks, rivaling today’s top digital systems—without needing a wall of GPUs to do it.

Source: SciTechDaily

![](https://pbs.twimg.com/media/Gp_hzs3XUAAWvQn.jpg)

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