Blogs to learn about validating your idea and otherwise proving if you should proceed with your idea or not.
Market Validation is proving that people are willing to pay for your solution to a problem and that there is a market for your invention.
Idea Validation is proving that people are willing to pay for a solution to the problem you want to solve before you try to solve it.
Product Validation is proving that enough people have the problem you want to solve and are willing to pay for your solution to problem.