How can the rising generation possibly appreciate the marvel of the Internet as much as those of us who remember when there was no such thing? Probably they can’t, but then again it doesn’t remotely matter.

That occurs to me because I found a site the other day that promises to satisfy one’s Klein bottle needs. Acme Klein Bottle, which says:

Need a zero-volume bottle?

Searching for a one-sided surface?

Want the ultimate in non-orientability?

Get an ACME KLEIN BOTTLE!

I might misunderstand these things, but I think they’re actually selling models of Klein bottles, since an actual one isn’t doable in only three dimensions. No matter. A Klein bottle for the mantle would be cool indeed, though I’m not in the market for fragile household oddities right now. I prefer more durable items.