Making little steam engines, trying to make my first layout (70D) at a very ripe age, Art, Music, my 4 daughters and their offspring, my wife, a deep pool of wisdom and intelligence very scary in a way.
Modern European History, well any history really, travelling by all forms of transport, motor racing and much more I can't talk about.
Oh! reading too, discovered the wonderful optimistic SF books of the late Iain M Banks - if only we could become "The Culture" we have wherewithal - just need to focus!