The Linker is not a Magical Program

[sclytrack]

That is probably because most books don't explain it properly. Heck my C++ book
doesn't even mention it. And for the extern keyword there is only one very short
explanation.

extern: Storage class for objects declared outside the local block.

Oh and I read your rant about linkers, ... and it still looks magical. And I bet
Andrei's book will keep it short too.

And Magic isn't always a bad thing.
And the D shared libraries thing, very complex, no magic.
C# assemblies. Everything just works, magic.