Future advancements in materials science could potentially enable perfect playing cards using multi-spectral banded dye encodings by:
1. Multi-spectral dyes: Dyes that are detectable in multiple parts of the electromagnetic spectrum, such as infrared or ultraviolet, could be used to create cards that are virtually impossible to mark or distinguish from each other.
2. Card material engineering: Advancements in card material engineering could allow for the creation of cards with unique surface structures that can only be detected using specialized equipment.
1. Multi-spectral dyes: Dyes that are detectable in multiple parts of the electromagnetic spectrum, such as infrared or ultraviolet, could be used to create cards that are virtually impossible to mark or distinguish from each other.
2. Card material engineering: Advancements in card material engineering could allow for the creation of cards with unique surface structures that can only be detected using specialized equipment.