Something shifted in the AI world on March 2, 2026. 📉 NVIDIA, the king of GPUs, quietly moved $4 billion into two companies—Coherent and Lumentum—that most casual investors have never heard of. Weeks earlier, Marvell Technology closed a $3.25 billion acquisition of Celestial AI. That is over $7 billion flowing into one narrow corner of the supply chain in a single month. This isn't a trend; it's a structural pivot from copper to Silicon Photonics.

We’re breaking down the 1.6 Terabit Wall—why copper physics is finally breaking AI scaling and how "Light-on-Silicon" is the only way to power the next generation of 120kW racks.

We’ll talk about: