Additive manufacturing/3D printing is now over 40 years old, with a multiplicity of technologies that can do amazing things. Naturally, different materials and technologies are needed for different jobs, and not everything lends itself to be produced by AM/3DP. However, the capabilities are real and proven, and the benefits of using AM/3DP are considerable.
So here's the question: what needs to be seen for AM/3DP to be used 10x more than it is now?