My former boss’s wife used to steer very strangely when driving - The Jeep was likely out of alignment, but instead of staying centered and making continuous small corrections, she’d let it drift to one side till it was on the line then quickly correct back towards center and then continue drifting, endlessly until arriving at the destination.
That’s where you should use something more like top / bottom /s
I think in this sense, master is more akin to the ‘recording’ master - The best version of the recording to which others are generated, and all parts merged; no ‘slaves’ necessarily just the ‘master’.
You clearly haven’t seen how bad “no-consequences cheap” can be with even simple electronics. Your lamp, for example:
Melting (under-spec or poor construction) AC wiring, poor material for the cord, switch or socket.
Melting / burning lampshade (yes, even with LEDs).
Electrocution risk - Loose connections, easily broken plug or lamp socket, switch, inappropriate (conductive) materials.**
And that’s not even considering larger-design problems - Lamps that are prone to falling over (and breaking, or melting other things), lamps that flex but not too much or they break exposing problems above, assemblies that aren’t reasonably child-proof, RF interference even.
The race to the bottom without rules is a dangerous place for the consumer expecting a bare minimum guarantee of fitness while inviting these products into their home, not to mention those most often buying the cheapest option may be the most vulnerable.
“Sir, this is a Wendy’s”
There’s some really fun chemistry in the rare-earth magnets - I used to buy them in bulk to enlarge my own IT-workshop collection, which was mostly broken down for Nd salts. Also, the magnets from iMac screens were also plentiful when HDD magnets got small (and then went extinct).
I do kinda like saying “the actual issue was a PICNIC.”
Log files from a local SQL server.
And it’s opposite (Schrödinger’s Box?) - The (edge) problem that you can see and is guaranteed to exist and cause problems but somehow never does and the code works perfectly.