EEVBlog 1439 - Analyzing Veritasium's electricity video

[Fungus]

Propagation takes time, no matter whether you use capacitive coupling, transformer theory, transmission line theory, or antenna theory.

Laws of Physics: "You can't transmit information faster than light".

[Obi_Kwiet]

So I'm pretty sure I was sleepy and confused myself last time. Everything after the switch is pulled down to 0V relative to the positive terminal, so when the switch closes, charges will spread out into the wire and there will be a significant current, so the transmission line approach does work.