Co-Packaged Optics (CPO) is emerging as the semiconductor industry's answer to this bandwidth bottleneck. By integrating optical components directly with compute or switch chips, CPO promises higher bandwidth, lower latency, and dramatically improved energy efficiency. Advanced packaging technologies, such as 3D chiplets hetero-integration and co-packaged optics (CPO), have become crucial for further improving system performance. Currently, most solutions rely on silicon-based technologies, which alleviate some challenges but still face issues such as warpage. As AI clusters push beyond 100 Tb/s per node, the gap between what silicon can generate and what traditional copper interconnects can deliver is widening fast. Three hurdles are now colliding: First, power delivery is nearing practical limits. Adding GPUs no longer scales linearly, with power and. As datacenters strive to meet escalating demands for efficiency and bandwidth, particularly with the integration of AI and ML technologies, optics is poised to play a crucial role in shaping the future of interconnect architecture and performance. This technology can immediately boost today's AI/ML compute power to train larger neural networks that can perform more complex tasks. Now, imagine that some of the most essential roads are congested.