# How Do Two Clocks Agree?
trace 1 / 2
33 min read
Your watch and your laptop both say 3:00 PM. They've never communicated. How?
/ series/ trace
These posts are AI-assisted and written as a personal learning exercise. They may contain errors and shouldn't be treated as authoritative sources.
# How Does a Light Switch Fill a Room With Light?
trace 2 / 2
49 min read
You flip a switch. Photons stream from a wire, cross the room, enter your eyes, and become seeing. Every step is the same force.