> First the skateboard, then the scooter, then the bike, the motorcycle, and finally the car. I've always found this metaphor incredibly amusing, because, to m

> First the skateboard, then the scooter, then the bike, the motorcycle, and finally the car. I've always found this metaphor incredibly amusing, because, to me, it actually highlights the _problems_, rather than advantages, of the iterative approach. At every step of the process, you're not only increasing complexity, you're also pivoting your product to the point where: 1. your previous clients are unlikely to still be well served by the new product, and are likely to churn as a result 2. the engineering challenges are different enough that most of the components aren't really reusable, and trying to shoehorn one stage into becoming the next will give you a sub-par product.