They're different lenses on the same substrate — both are symbolic systems for structured intuition — but they work at different resolutions and with very different temperaments.
Scale
Tarot uses 78 cards with positions, reversals, and suit interactions. Elder Futhark uses 24 symbols. This isn't a quality difference — it's a granularity difference. Tarot gives you a detailed paragraph; runes give you a sentence. Both convey meaning; the density differs.
Tone
Tarot is conversational. The imagery invites narrative interpretation. You tell a story with the cards. Runes are declarative. Each symbol is a statement. Isa means stillness. Raido means journey. There's less ambiguity and more directness.
History
Tarot emerged in 15th-century Italy as playing cards before being adopted for divination. Runes were a living alphabet carved into stone, wood, and bone across Scandinavia and Northern Europe from the 2nd century CE, with divinatory use documented by Tacitus in the 1st century.
When to Use Which
Use tarot when you want nuanced narrative — "What's the full picture here?" Use runes when you want directness — "What do I need to know?" In Chaos Tarot, cross-system readings combine both in a single spread, letting each system illuminate different aspects of the same question.