It's pretty cool that Fox appears to be using generative design to save weight on the arch and crown. If you're not familiar with generative design, here's a definition from Autodesk: Generative design is a design exploration process. Designers or engineers input design goals into the generative design software, along with parameters such as performance or spatial requirements, materials, manufacturing methods, and cost constraints. The software explores all the possible permutations of a solution, quickly generating design alternatives. It tests and learns from each iteration what works and what doesn’t. More info:
https://www.autodesk.com/solutions/generative-design