[tossandturn]

Prions are like gamma-induced bit flips, Viroids are like small code patches, and Viruses are self-deploying code patches.

[jvanderbot]

What blows my mind is these aren't really analogies, they are in fact mostly truth.

[thinkpad20]

To be precise, these aren’t really analogies, they are in fact similes. :)

[kenbellows]

To be precise, similes are a type of analogy