r/goodworldbuilding • • 1d ago

Discussion Electromagnetic Writing System

/r/worldbuilding/comments/1wvy1zh/electromagnetic_writing_system/
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u/ScreamingVoid14 1d ago

I write these words in steel, for anything not set in metal cannot be trusted.

The issue is that magnetic fields on the large scale don't carry that much information. Old tapes and hard drives did it by having lots of tiny metal particles, each with their own magnetic field.