Establishing whether there’s a market for a specific product takes a lot of time and effort. Through years of exposure to the nuances of a particular industry, experienced entrepreneurs develop a keen sense for noticing “gaps in the market,” be it for entirely new services or ways to improve on existing products. Vision typically precedes plenty of legwork. Before securing financing — or pouring their own savings into developing a new product — smart businesses apply serious diligence into establishing product-market fit.

https://www.smashingmagazine.com/2020/08/tips-customer-centric-landing-pages/