On why you shouldn't ingore pre-market validation at startups, pre-market validation & economics

From X post:

Stop building and launching without pre-market validation.

And the 1.1 thing (a part of it) — learn business, product, unit economy to know what and how to pre-validate.

🧐 On Unit Economics:
I'm about digital business, SaaS yes.

A unit = one paying customer.
Unit economics is all around the revenue from one user and the costs of serving them (on average).

Variable costs (change with user count):

• Customer Acquisition Cost (CAC): What you spend on marketing and sales to get one paying user.

• Tech Costs: Servers, hosting, and tools needed to serve that user.

Fixed costs (don’t change with customer count): Payroll, rent, software, etc.

So there are crucial metrics to understand:

• Gross Margin per Unit:
  (Revenue - Variable Costs) / Revenue

This shows how much profit you make per customer after covering variable costs.

• Unit Breakeven:
  How long (in subscription cycles or purchases) it takes for revenue from one user to cover the cost of acquiring and serving thm.

• Gross Margin vs. Customer Growth ratio in dynamics:
  Does your margin increase as you get more users? Or it stays flat, or worse, shrnk?

On practice:
Low margin— you’ll need a massive customer base and near-perfect retention to earn something.

Long breakeven — it it takes forever to cover costs. Cash gaps. Churn increase will kill you immediately.

No margin growth with scaling — you’re cooked. Model isn’t scalable, you have no money to reinvest in business and stay competitive, which scares off investors.