A list of 27 words by uselessness.
- time travel appears on 8 other lists
- butterfly effect appears on 7 other lists
- brain in a vat appears on just this list
- solipsism appears on 231 other lists
- cryonics appears on 7 other lists
- rube goldberg appears on 6 other lists
- cloning appears on 6 other lists
- teleportation appears on 7 other lists
- antikythera mechanism appears on 6 other lists
- mind transfer appears on 1 other list
- robot rights appears on just this list
- quantum computing appears on 1 other list
- alcubierre metric appears on 2 other lists
- antimatter appears on 12 other lists
- memory wiping appears on just this list
- matter replication appears on just this list
- sentience appears on 17 other lists
- afterlife appears on 15 other lists
- intellectual property appears on 10 other lists
- improbability appears on 1 other list
- historical revisionism appears on 3 other lists
- autocannibalism appears on 3 other lists
- utopia appears on 75 other lists
- swarm intelligence appears on 1 other list
- parallel universes appears on 1 other list
- entropy appears on 106 other lists
- fate appears on 36 other lists

uselessness Indeed I am! Listing unique words since 2006.
(Though less frequently of late.) May 11, 2011
reesetee That's our uselessness.... ;-) May 11, 2011
ruzuzu You're the only person listing brain in a vat, robot rights, and improbability. Fortunately, autocannibalism has been listed elsewhere. May 10, 2011