How about a combination of DNA and fingerprints? Since identical twins/triplets/etc.. don't have identical fingerprints.

It doesn't need to be washable. That's the whole point. Nothing sticks to it.

Isn't that called "cancer"?

Just because the sense organ is in the ear doesn't mean that it is associated with the sense of hearing, just like our sense of balance comes from structures in the ear, but that sense is unconnected to hearing.

I think it's more like 100 pixels.

I'm not a big fan of Ayn Rand, but that's one of the things she got right.

I prefer 16x10. I used to have two 16x10 monitors at work, one 19 inches, the other slightly smaller than that. I kept asking my boss to get me a match for the larger one, even sent the link where she could get the exact same model. She ended up getting me two new monitors, both 16x9. There is just not enough vertical space for be to be comfortable using them.

I have an 1920x1200 at home, which makes me very comfortable.

In Greg Egan's book, "Distress", there are genetically engineered trees whose roots seek out wires that are buried underground and pump their own internally generated electricity into them.

Also mentioned are mosquitoes that are repelled by the smell of mammal blood, which is something else I think we should look into.

My only exposure to Space:1999 was a ViewMaster disk that was at my grandmother's house when I was a kid (probably originally belonged to my older cousins).

And what happens when there is nothing else?