It is 2 a.m., do you know where your digital twin is? Once buzzwords, the aerospace and defense industrial base is embracing the digital thread in manufacturing at an increasing pace. Managers see a future where digital twin approaches go from just product design to the whole supply system. Coupled with other technological leaps, such as working from anywhere on any device, digitization promises many benefits but also challenges. Costs, cyber risks and human capital challenges loom. Aviation Week talks with Accenture advisors on the outlook.