It occurs to you that you took typing lessons at school… using typewriters.
When you tell your six-year-old daughter that you didn’t have YouTube, DVDs or even those big black plastic “VHS” thingies when you were her age, she looks like she’s expecting you to crop up in “Horrible Histories” as a Tudor.
It dawns on you that thirtysomethings with guitars and a penchant for 1970s prog-rock, might possibly not be “the next big thing” for the music scene of 2011.
You live in fear of the day when your child will show you something new to do with computers, instead of the other way round.
You’re thinking about any of the above nine items in the first place.