How do memory champions memorize decks of cards?

Short Answer

They convert each card (or pair) into a prelearned image (often PAO) and “place” those images along a familiar route in a memory palace, then recall by walking the route.

Why This Matters

Because encoding turns 52 abstract symbols into a small set of vivid scenes, it reduces cognitive load and strengthens retrieval cues. Loci provide an ordered scaffold, which leads to fast, accurate recall under time pressure.

Where This Changes

This depends on a memorized “card-to-image” system and lots of practice; without that setup, it won’t be fast. For everyday use, simpler methods (chunking, spaced recall) are often more practical.