As I’m typing this, the rain is hammering down on the roof of my office and the skies are an ominous gunmetal grey. It’s a far cry from last Friday, when we were visiting the British Airways i360 experience in Brighton. We had the bluest, clearest, skies last Friday; which was perfect for a little afternoon excursion up the  i360 tower. A cross between the Shard (which we visited a couple of years go), the London Eye and a giant…