Thirty years ago, when I was about thirteen, I got a memory expansion for my VIC-20. (I told the whole story a while ago). Now, my eldest son Daniel is thirteen, and to congratulate him for an excellent set of end-of-year exam results, I bought him a memory expansion for his MP3 player.

Here they both are:

Mine is on the right; it provides 8 Kb. Daniel’s is on the left: it provides 16 Gb. So that’s two million times as much memory.

We’re living in the future.