In some cases, inventions prohibit innovation because we're so caught up in playing with the technology, we forget about the fact that it was supposed to be important.
I was really into classifieds for awhile. I'm a big negotiator. My father owned a car dealership when I was younger... it's just in my blood.
Some people are naturally thin and some people are naturally heavier. It doesn't mean that bigger is healthier, or much thinner is healthier, it's on an individual basis.