[...] seen ten times previously, then I would suggest Limitless. Watch Limitless at the free movie site.Limitless: Movie Review - This flick really doesn't exactly go really deep with either the morality ...properly created. But I was involved from the beginning to the conclusion with this taut and, best [...]

I have an uneducated guess about this. I've always wondered if it had some to do with our survival instinct. Fear used to be an important tool to staying alive for human beings. If we were living closer to nature, it was important that we got an adrenaline rush if a predator (or other human) tried to hurt us somehow. Now that we've built cities and suburbs that minimize common threats, we still need that catharsis. Perhaps?

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