Nearly every entrepreneur has heard the refrain, "Get back to me when you have some traction,” while seeking funding. From an unsophisticated investor, this response might be a non-confrontational way of saying "No." However, when uttered by most Venture Capitalists (VCs) it conveys a desire to obtain validation of your venture's value proposition from dispassionate, objective third parties. In this context, your "value proposition" is defined as the utility you claim users will derive from your solution.
Via Cédric Giorgi