Its true that technology has taken us to that point where we can even think of impossible but there are many counter-effects that human race is facing after this advancement in technology ...... wars , global warming , terrorism , time for family etc ........ Do u really think that technology is hurting us more than benefiting us 
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?Technology doesn't hurt us at all. We hurt ourselves period. You can say that gadgets like phones and tablets shorten our attention span but the truth is we ourselves don't have the discipline to put it down and look at the person in front of us and have an actual conversation. You say that it affect our children with they're eyes and causes them to shrink their brain, i say divert their attention to something else and actually restrict them not forbid them to use technology.