
9 Rules for New Technology

1 The new tool should be cheaper than the one it replaces.
2 It should be at least as small in scale as the one it replaces.
3 It should do work that is clearly and demon-strably better than the one it replaces.
4 It should use less energy than the one it replaces.
5 If possible, it should use some form of solar energy, such as that of the body.
6 It sh
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