[3/7 23:00] Broadcom CEO says copper interconnects viable through 2028 / Cadence Design Systems maps three-layer AI strategy with Physical AI

AI News Flash for March 07, 2026 at 23:00 UTC. Topics: 1. Broadcom CEO says copper interconnects viable through 2028 https://www.digitimes.com/news/a20260306PD212/broadcom-copper-cpo-technology-2028.html 2. Cadence Design Systems maps three-layer AI strategy with Physical AI https://www.themarketsdaily.com/2026/03/07/cadence-design-systems-maps-three-layer-ai-strategy-spotlights-physical-ai-and-chipstack-super-agent.html 3. Tohoku University - Large AI models accelerate catalyst discovery https://www.tohoku.ac.jp/en/press/accelerating_catalyst_materials_discovery_with_large_artificial_intelligence_models.html 4. Cathie Wood buys AI stocks during tech pullback https://www.fool.com/investing/2026/03/07/cathie-wood-bargain-hunting-2-ai-stocks-bought/