Ah yes, I remember that during my accidental encounter with the M25 I was cruelly misled by a pre-conceived notion that roads always go somewhere (Rome or Hackney?). You'd think that yearly visits to Canberra would have cured me of that (built by the same Aliens that did Milton Keynes).

But that's one mystery solved, when I was looking back over the details of one of my holidays I couldn't work out why it had taken me so long to get from St Albans to London; I think I understand now.:blush: