What a Bad Thermostat Teaches Us About Control

Logosofia no Dia a Dia · Sep 1, 2026 · 27m

A bad thermostat doesn't just feel uncomfortable—it reveals deep lessons about control systems, sampling theory, and the mathematics of not overcorrecting. This episode uses the humble thermostat as a window into how to think about feedback loops, from bang-bang controllers to phase-lead compensation. We explore why reacting to every sample leads to oscillation, how "take back half" algorithms learn a system's momentum, and why the most important control action is often inaction. If you build systems that pull levers based on measurements—from auto-scaling to monitoring—this episode will…