The boundary between "life" and "not life" has some fascinating organisms/structures[0]: Virions Viroids Satellites Prions Defective interfering part

The boundary between "life" and "not life" has some fascinating organisms/structures[0]: Virions Viroids Satellites Prions Defective interfering particles (DIPs) I would also add t-RNA[1] to that list. It can almost replicate by itself, and sits right in the middle between "data" (DNA/RNA) and "code" (a small machine that can selectively hold an amino acid) [0] https://en.wikipedia.org/wiki/Virus_classification#Subviral_agents https://en.wikipedia.org/wiki/Virus_classification#Subviral_... [1] https://en.wikipedia.org/wiki/Transfer_RNA https://en.wikipedia.org/wiki/Transfer_RNA