It might be a better idea to make a at least a specification/business plan first without quitting since it will force you to really think through the idea. Ther

It might be a better idea to make a at least a specification/business plan first without quitting since it will force you to really think through the idea. There are always facets you may have missed that could kill it (or convince you even more). If you decide to take a leap... you have a spec!