BARCELONA’S SUPERCOMPUTER is perhaps the most beautiful in the world. It is located in the luxurious former Girona family estate, in a chapel built for their daughter who aspired to be a nun, next to the large family house and pond. Next door is a palace the family donated to the royal family. Inside the exquisite chapel, Mare Nostrum (Our sea), as it is called, is a humming flickering modern god with spectacular red cables, living in a huge glass case, surrounded by stained glass windows and timeless arches. Of course the entry door is located at the former altar. Is the answer 42?