could you please explain why Time says we'll be screwed in the next half-century?
Well most of the worlds ecommunally is based on the doubling of the speed of computers every few months. To do this you must put more scion on the micro chip, by making the scion smaller.
However the person who made the micro chip saw that one day you would not be able to fit any more scion on the chip (I think its called the scion theory). As I have said to put more scion on the chip you must make it smaller, however the smaller you make something the quicker it burns quicker. So there will be a point were we which the scion limit therefore stooping the doubling of computers therefore stooping our ecommunally. Also it is not limited to computers now days it goes to every thing which as a chip in it eg. cars. So that is the reason way we are screwed in the next half-century.
Also you got goble warming ( which I think is wrong).
PS. sorry for the spelling miscasts