How Do You Determine That A New & Uncommon Idea Will Succeed In The Market?

Is it by accepting the well-meaning advice of people that the idea may not succeed because it has never being tried or that it goes against the traditional way of doing things before now?

Or is it to ignore all advice and implement the idea because the marketplace - wisdom of effective consumers - is the best determinant of the true worth of an idea.

Your candid thoughts - if possible with examples - are welcomed

- Put yourself in their shoes. How much would you pay for the service?
- Interview your potential customers. Find out what they think about the idea.
- Try out the idea on a small scale. If it works for 10 people, it will work for 10 million!

i love that reply and i hope that is a good reply for you.
but for me what i will advice you to do is to try to market what your product or services will be by giving your prospect a newsletter about the services or product you want to give them by doing that i hope you will get more customer and they will like to no more about your services or product

When your potential customers are able to identify their need for your product/service and positively seek this need satisfied.Though an unconventional product/service incurs a larger risk of failure if not properly executed but hey,this applies to common ones too. You'll see the green light if after consulting (trustworthy) people in similar fields they are drawn to the imagination of the concept and if your target market is highly responsive about the idea.Essentially,when you get more approval than rejection your chances are greater.