I am at someplace like an old school. The floors are terrazzo and the wall are made of glazed ceramic bricks. It's got a very institutional feel. I'm heading to the bathroom and because this place is a little rough around the edges, I'm bringing my own roll of toilet paper. The bathroom is weirdly large, like the way bathrooms are in institutions. There are a couple of doors and the toilet is in the middle of one wall. The handle on the single lever faucet is a little groady, so I start wiping it down with toilet paper. Now it has morphed into something larger like a stainless steel toilet seat. I'm making some progress with cleaning it, but portions of the polished surface have been damaged. I keep after it and then suddenly three faces are revealed. Someone has gone to a great deal of trouble to etch these faces onto this piece of steel. They are very good, detailed pictures too, not just some cartoon images.
Now I'm talking to a student and I am trying to explain the meaning of the word 'grok' to him. I tell him he should read Heinlein's Stranger in a Strange Land, and then I have to explain who Heinlein was. Not surprising. Does anyone in the current generation know who Heinlein was?