Tech guru Steve Caplin asks what liquid which most of us use is more expensive than premium whisky or Chanel #5. He tells us about the world's first fly-in cinema, the Taipei competition to win fake air trips, the beetle that can digest polystyrene, robot dogs for the blind, the roll-up chess set, the porch parcel protection system and why future civilisations will know more about ancient Egyptians than they do about us.
