startup idea validation
https://page-wiki.win/index.php/How_to_Get_Startup_Idea_Validation_Right_Without_Wasting_Months
Before diving into building a full product, smart founders talk to potential users, launch a simple landing page, or run a smoke test to see if anyone actually wants what they're building. This validation phase saves months of wasted effort by checking demand, pricing, and problem fit upfront.