I always have my birthdays on a Saturday, a little girl told us at a playground. We laughed at first. But then we asked ourselves, why are we celebrating how many years old we are and not how many weeks? Or, as the aliens put it in a joke Simon likes by Math with Bad Drawings, why do humans think they remain the same age for 364 days and then age an entire year at once?
Simon has calculated how many weeks old he is (without a calculator) when we enjoyed our last cup of hot chocolate at an outside terrace before the second lockdown began. And, we have decided to celebrate his 600-weeks birthday, which will be… on Valentine’s Day next year 😊!


