It depends who you're sharing the idea with and how complex it is.
Certainly the vast majority of ideas require some real specialization and can't be emulated by anybody.
Also, an unproven idea which only "sounds like it could be great" really is a dime a dozen.
You should be more worried about HOW you accomplish your great idea. Maybe you've found a way to pull off some PROVEN product, but using 1/10 the labor, parts, etc. This is a competitive advantage that can pull you from zero to a million in revenue, buying you time to "properly" develop your Version 2 idea from the ground up. This, I have seen people stealing. If this is what you've got, then keep it secret. Sell your prouct by all means but keep that "special sauce" closely guarded.
Certainly the vast majority of ideas require some real specialization and can't be emulated by anybody.
Also, an unproven idea which only "sounds like it could be great" really is a dime a dozen.
You should be more worried about HOW you accomplish your great idea. Maybe you've found a way to pull off some PROVEN product, but using 1/10 the labor, parts, etc. This is a competitive advantage that can pull you from zero to a million in revenue, buying you time to "properly" develop your Version 2 idea from the ground up. This, I have seen people stealing. If this is what you've got, then keep it secret. Sell your prouct by all means but keep that "special sauce" closely guarded.