Probably one of the concepts I like the most when building a startup. I have heard this definition in a french video, and I liked the idea of the 3 points: 1/

Probably one of the concepts I like the most when building a startup. I have heard this definition in a french video, and I liked the idea of the 3 points: 1/ Are they understanding what you do? (UVP etc.) 2/ Are they using/buying? 3/ Are they sharing? (word of mouth, social shares, mentions, etc.) Do you have a better definition of product/market fit?