This is going to sound like a non-answer but honestly it really depends. It can depend on a number of factors but mostly the idea and industry the idea is in. F

This is going to sound like a non-answer but honestly it really depends. It can depend on a number of factors but mostly the idea and industry the idea is in. For many ideas, you can probably learn a solid amount along the way, particularly consumer facing ideas. For others, it will generally help significantly if you have domain knowledge coming in.