JESUS TAKE THE WHEEL!
Do you think that the remaining 10% of successful startups aren't utilizing forecasts and testing their assumptions? People love to be contrarian just to be contrarian on this site sometimes.
I’m of both minds. We need a rough business model (a type of Fermi Estimate ) and metrics to help track and validate our assumptions. At some point these estimates become detailed enough to gain predictive power but assuming they begin that way is a recipe for failure.
My argument is that the financial model presented during the pitch is a waste of a great deal of effort because it is inaccurate and futile. As someone running a seed-funding business, you are relying on a piece of financial fiction to make a decision about whether to fund. Do you really care about the forecasts or just the metrics that are more difficult to fudge? Could the model be distilled to something more useful that isn't even a model?
I suggest the following exercise: among your investments that survive, reconcile the early financial model with current performance and market analysis. How accurate were the estimates?
This is ultimately an exercise in creating an illusion of certainty and competence: can an entrepreneur sufficiently obfuscate a business opportunity so that the investor doesn't look bad?
And if it's not the intention, this would be useful to me for that reason.
VCs need to own this mistake and kill the financial model requirement. Stop wasting entrepreneurs' time.