During this stage you validate the assumptions underlying your value proposition, and discover what customers really care about. This is a long and iterative process.

Product-market fit happens when you have evidence that your product is creating va...

• Gut Microbiome- https://link.springer.com/article/10.1007/s00394-021-02760-4
• Plants

https://pubmed.ncbi.nlm.nih.gov/32105111/

• Music https://content.iospress.com/articles/journal-of-alzheimers-disease/jad210610

https://www.ncbi.nlm.nih.gov/pubmed/15296685