How To Tell A Good Idea From A Bad One:

I love a good idea. I also love hearing other people’s good ideas and then watching them take shape. Throughout my career, I’ve had many people come up to talk to me about their great ideas. Now, as you probably have guessed, I didn’t necessarily agree with them that their idea was great, or would even change the world. Good Or Bad. I admired their passion and self-belief because you’ll need that in spades to make any new business or project a success. But no amount of passion can fix a poor idea, and I’m afraid that over the years I’ve come across more ideas that will never work than those that will.
This doesn’t mean that it’s wrong to have bad ideas. We all have bad ideas from time to time. In fact, you need to go through a whole heap of bad ideas to uncover the good ones, but to pursue an idea that won’t work is foolish, and often expensive!
So how do you know if your idea has legs? Well, there are a few common-sense tests you can apply to find out.

1. Ask Questions
2. Do your Research
3. Ask Yourself Questions

But let’s be clear, too: great ideas come after many bad ones. It’s very rare for entrepreneurs to be successful with the first idea that pops into their head. The trick is to keep going. Keep brainstorming and thinking and coming up with a lot of bad ideas until — presto! — you find a diamond in the rough.