Business I / Differential Equations
Practice question · Multiple choice

A startup projects 20%/month growth "indefinitely" in its pitch deck. Which mathematical objection is the sharpest?

Hints
  1. Where does e0.2te^{0.2t} go as tt \to \infty?
  2. Compare with the number of humans alive.
Show the answer

C. Exponentials outgrow any finite market

Why

At 20%/month the user base multiplies ~9× yearly; in a few years it exceeds humanity. The exponential is locally right and globally impossible, every honest forecast eventually swaps in the (1x/K)(1 - x/K) brake.

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