Lean Startup, Mathematical Modeling, Applied Mathematics, Metrics.
+ 1 will never ever,ever equal 3. That’s all we need for this discussion. Part 2: is there a meaningful connection between this model and whatever it is we’re modeling. Ok, now for the fun. 1 + 1 = 2 meaningfully informs 1 apple + 1 apple = 2 apples. Also, 1 apple + 1 orange = 2 pieces of fruit.