Discussing the big picture.
So, you have the next big idea, but are you prepared? What's your design brief? Who are your users? What's your market size? Have you identified any competition? How will your idea fit into the existing market? Have you protected your IP?
All of these factors are interlinked and all equally as important as each other. Thankfully, the route to holding that first real part in your hand is a well trodden path.