I always assumed greyhounds were high-energy, until some friends of my husband's who live in a teeny tiny apartment adopted a former racing greyhound. That's when I learned that greyhounds are basically houseplants.
In Greek, 'nostalgia' literally means 'the pain from an old wound'. It's a twinge in your heart, far more powerful than memory alone. This device isn't a spaceship, it's a time machine. It goes backwards and forwards, it takes us to a place where we ache to go again.