Part 1: Linear vs Exponential Scaling
Human intuition evolved in a savannah where growth is linear: 30 linear steps takes you 30 meters. But 30 exponential steps (doubling each time: 1, 2, 4, 8...) takes you over 1 billion meters—around the Earth 26 times.
- Linear Growth: y = mx + b (constant addition)
- Exponential Growth: y = a(1 + r)^t (constant multiplication)
- The Rule of 72 (divide 72 by interest rate to find doubling time)