You must lead, not follow investors into the promised land.
Make a 3 years operating plan and let me do the questioning. Wonders are revealed that way. Not so much in the accuracy of assumptions but in the way you as an entrepreneur think, indicating you can weather a few storms along the way.
The trajectory towards the upside demonstrates the realistic progression towards the said upside. Hence, a moving target plan that is different from turning a blender on instead comprises various revolutions for every stage of the proverbial rocket launch.
It is imperative to establish the upside of your idea related to a new and better normalization of truth and selling that to an investor first. But soon thereafter, your ability to make that idea a reality must be conveyed in a language investors best understand: finance.