## Macromolecule storage techniques
- Several KBs have been stored successfully in DNA chains
- Synthetic molecules also work
- Technology is mostly limited by slow reading and writing speeds
- Sequencing methods include tandem mass spectrometry (MS/MS), enzyme-based approaches, and nanopore threading.
- Using synthetic polymers allows the molecular structure to be tuned to facilitate sequencing using "routine analytical instruments".

## Synthesis of coded macromolecules
- Solid-phase iterative chemistry