Dear Professor Cox,
According to the Multiverse Theory, there must be at least one universe out there in which feta cheese does not exist. What happens if you order a Greek salad in that universe? Do you simply get a bowl of cucumber, tomatoes, olives and onions, and if so, will it be cheaper?
Mrs Ada Pustule, Athens
Brian says: “I’ve just had a quick squizz at my big Multiverse Theory Excel spreadsheet, and I can confirm that in the Feta-less Universe, a Greek salad will set a diner back around £2.80. Which sounds like a decent deal until I tell you that, in the Feta-less Universe... cucumbers, tomatoes and olives don’t exist either! So, you’re essentially paying the thick end of three quid for a bowl of chopped…
