I visited two wonderful churches in Barcelona. The first, of course, was La Sagrada Familia. Ramez Naam put it best, this is “the kind of church that Elves from the 22nd Century would build.” I can’t add to that, however, so let me turn to the second church.
The Chapel Torre Girona at the Polytechnic University of Catalonia in Barcelona is home to the MareNostrum, not the world’s fastest but certainly the world’s most beautiful supercomputer.
Although off the usual tourist path, it’s possible to get a tour if you arrange in advance. As you walk around the nave, the hum of the supercomputer mixes with Gregorian chants. What is this computer thinking you wonder? Appropriately enough the MareNostrum is thinking about the secrets of life and the universe.
In this picture, I managed to capture within the cooling apparatus a saintly apparition from a stained glass window.
The ghost in the machine.
Hat tip: Atlas Obscura.