The Engineering Summit in Denver

Forty-eight hours later, the collaborative operational teams of Apex Dynamics and Vale Capital arrived in Denver, Colorado, for the critical high-altitude stress testing of Project Horizon. The sprawling Union Pacific intermodal rail yard outside the city was a labyrinth of steel tracks, towering gantry cranes, and massive four-thousand-horsepower diesel-electric locomotives rumbling in the sub-zero mountain air. Sienna stood on the elevated observation catwalk wearing heavy winter coveralls and a hard…