I suspect a lot of the improvements have come from advancements in simulation fidelity and optimization techniques. The raw amount of computing power for comput

I suspect a lot of the improvements have come from advancements in simulation fidelity and optimization techniques. The raw amount of computing power for computational fluid dynamics has gone up orders of magnitude, and there's been a lot of improvements in machine learning over the last 10 years. 20 years ago, it was still very much an art of designing a shape, fabricating it, trying it, then refining it. Nowadays a lot of that refinement can be done virtually. Not that someone at Boss or whatever is an ML expert, but the person that wrote their CAD tools might have been. Also, there has been recent emphasis on rather aggressive software based automatic/factory equalization and optimization for human perception rather than flatness. That's an incremental improvement, but like smartphone camera photos, it can really elevate the experience.