Ask HN: What is the best way to validate a startup idea?

I want to start a company this year, what is the best and cheapest way to validate if my idea is valid

Try and talk with your potential customers.

* Build a landing page where you explain what you want to build

* Add a pricing page and ask for money

* Ask for users address if interested

* If enough interest is shown - build your first MVP

Here's a more detailed example about validating an idea - https://blog.bufferapp.com/idea-to-paying-customers-in-7-wee...