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              An in-space construction firm says it can help build massive data centers in orbit
 
            
            (arstechnica.com)
          
          This is a most excellent place for technology news and articles.
Honestly, it's hard to figure out what the first step in that chain is. If you want to start up industry in space, great, there are lot of potential benefits to that. But where do you start?
Within the next 50 years I do expect a broad sector of space industry to emerge, but I really can't predict what the first opportunities might be. Still, we can poke fun at it all we want right now, but I suspect a great many people will be working in space 50 years from now.
Mining raw resources that are more easily availabe on asteroids than on earth seems like the most likely candidate. There are metalic asteroids that have significant quantities of valuable metals like gold, titanium, iridium etc.