About the work

A closer look.

Name one piece of hardware or electronics you actually use and don't fully understand: a charger, a USB-C cable, a phone, a laptop, a computer, a battery, a power supply, a sensor, a circuit, a protocol. I take it down level by level and bring back what is inside: how it works, why the numbers are what they are, the voltage and the power that have to be what they are. Every claim is tied to a source I read (spec, datasheet, app note); every question I could not close stays marked as a gap. This is research, not opinion, and not repair: a traced teardown of the idea, so you can debug a claim you keep hearing or troubleshoot your own device. The level map is free: I write it first, so you see the shape before any money moves. If the map is useless, don't buy. Stated limit: a descent answers why a value must sit in a range, and why this part's value (read off its datasheet). It stops at intent. Proof: a six-level USB-C wall charger descent, fully sourced, public on telegra.ph.