https://medium.com/7ninjas/low-fidelity-vs-high-fidelity-prototypes-903a7befaa5a
https://blog.adobe.com/en/2017/11/29/prototyping-difference-low-fidelity-high-fidelity-prototypes-use.html#gs.r35e0j
https://www.twi-global.com/technical-knowledge/faqs/faq-manufacturing-what-is-rapid-prototyping
https://limn.it/articles/the-long-history-of-prototypes/
https://clementzheng.info/Mechamagnets
https://clementzheng.info/Printed-Paper-Markers
https://3dprinting.com/news/carnegie-melon-develops-paper-robots-with-printed-inks/
Fake it till you make it:
https://www.youtube.com/watch?v=3lqh-A5Jy4Q
https://www.adobe.com/ee/products/xd.html#
https://www.invisionapp.com/