In order to validate any business idea as a founder, you must get feedback from your target customers (i.e. the people you are aiming to serve with your solution).
The tricky part is how to do this when everyone you talk to is telling you what they think you want to hear instead of what you actually NEED to hear about your product idea and whether it solves a real problem. "The Mom Test" is a book written by Rob Fitzpatrick which focuses on how to approach this dilemma from the point of view of a SaaS businesses.
One of the first things that I appreciate about the book is how it starts out by pointing out that, whether you are working solo or have a co-founder, you need to realize that focusing on building product alone will get you nowhere in terms of having a profitable business. And if you actually want to some day find product market fit, you will need to get out there and talk to people.
This hit close to home for me because, for the longest time, I was spending all my time coding and not talking to anyone. I knew that at some point a sale would need to be made, but always thought that this was someone else's job (not mine).
This first chapter of the book helped me realize that really it is up to no one else but myself to get out there and start having conversations with potential customers. One of the things that motivates me to actually going through with reaching out to people for these conversations is that:
1) In the beginning you are not trying to sell anything; you just wan to learn what the pain points are for your customers. So this takes a little bit of pressure from the thought of starting.
2) It your business idea is not really solving any problems... wouldn't you rather know that now than after having spent years working on it?
I've just now started reading the book, so these are only my initial thoughts about it and how it applies to me, but I look forward to continuing to learn more as I read.