I am trying to come up with a list of Technologies that are likely to become widespread 10-20 years from now and essentially replace whatever we use now. The ultimate goal is to invest a certain amount of money into corresponding companies and forget for a decade or so.

So far, I got geothermal and tidal/wave power, genetically engineered crops, therapeutic stem cells and RNA interference, smart traffic controls, biodegradation, wireless electric grids. What else?..

I think General Electric (GE) will probable own or out do most of those companies so I would go with a conglomerate. !0-20 years they’ll buy all the successful power companies, maybe tidal/wave power, wireless electric grids. They are still involved in new electric technology and aircraft engines. Lots of companies still have other names, but are owned by a conglomerate such as GE.