EPQ ideas

After doing my initial planning i was conflicted on two initial ideas. I wasn't sure if i wanted to look into 3D printing and looking at its past and how it will change the future of production, or looking at mass extinction and looking at theories of mass extinction of the human race. In the end i decided to follow up on 3D printing as i have more access in this field, i have access to 3D printers and have connections to professionals in this industry through my product design teacher.