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yes thats true.. but thats what we call the pisitive use of them.. they are more used for negative work too.. :/

What are you referring to when you say negative use?

well there are many things to be counted
one of them for example is the uncreasing level of obesity in this world
it is the machines which makes our work easy but make us lazy at the same time

That's true, I think it's more a problem of educating people on how to use the technology.