What are the 3 categories of the space economy?

Satellites and defense, space travel and tourism, and space mining. Category 1, satellites, communications and WarTech: broadband constellations, GPS, earth observation, defense, stations, the money machine of today. Category 2, space travel and tourism, Richard Branson's corner, the visible but smaller $1 trillion slice. Category 3, space mining, the strategic $3 trillion endgame of my 2018 call.