Versatility
Build a non-functional version of the idea
https://albertosavoia.medium.com/the-palm-pilot-story-1a3424d2ffe4 The original Palm Pilot was cut out in wood to pretend it was a real product. Useful to test form factor and audience reaction.
https://albertosavoia.medium.com/the-palm-pilot-story-1a3424d2ffe4
The original Palm Pilot was cut out in wood to pretend it was a real product. Useful to test form factor and audience reaction.