According to dan bricklin, inventor of visicalc, what is the most effective and efficient way to move forward with an idea?

The most effective and efficient way to move forward with an idea is "create a prototype".

A prototype is an early example, model, or arrival of an item worked to test an idea or process or to go about as a thing to be reproduced or learned from. It is a term utilized in an assortment of settings, including semantics, plan, hardware, and programming.