Here’s a conclusion I’ve made building consumer products for many years: the speed at which a company innovates is limited by its iteration speed. I don’t even mean throughput here. I just mean the cycle time.

Erik Bernhardsson

Fast iteration cycles are the primary competitive advantage in software development. Using analogies from military tactics and stochastic gradient descent, the argument is made that a small team deploying code multiple times per day will outperform a team 10x larger that deploys every few months. Big-bang waterfall projects — whether at banks, government agencies, or even modern tech companies — fail because assumptions go unvalidated for months or years. Agile is criticized as 'mini-waterfall' when it doesn't create genuine feedback loops. Key antipatterns include compensating slow cycles with more hiring and attributing failure to insufficient planning rather than the futility of planning itself.

Iterate or die