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Originally Posted by Herroberst  Don't you feel an invention is useless unless it can be applied? |
Not at all. There have been plenty of inventions that on their own never were useful but led to subsequent developments that were. Just because something is impractical or useless now does not mean it might be practical and useful in the future.
Not all progress is revolutionary. Most of it is evolutionary. That is, most inventions are not something totally new without a previous string of developments but usually they are the other way around.