Everything back then took work and time. In rural America, it wasn't unusual to walk five miles to a friend's house to play a few games of checkers. Life was monotonous and physically challenging. In the countryside there was no plumbing and electricity hadn't been invented yet. You spent a lot of time hauling around water, chopping firewood, planting and tending crops. It took nearly continuous physical activity. Leisure was no different: it took time, work, and active minds.
Want to socialize, hang out with the buds? It was a big deal, a special day. You'd either walk a ways or get on your horse and ride. If it were a really big day, like election, you'd hitch the wagon up to the plow team. It was a lot of work and hassle, but eventually you'd end up at the dance, the election, the church, the pub, or wherever. There would be drinking and story-telling ugoing on for hours on end. Hey -- these were your friends and it took a lot of hassle to spend time with them. For instance, when the American Colonies were formed, Ben Franklin and a few other delegates threw a kegger before everybody else arrived that went on for several days.
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Technology is Heroin.
It's still very early. We're still in the phase of expecting some even better technology to come along and save us from this problem. Programmers are creating "no procrastinate" options for their web sites in order to help users not spend so much time there. Programs are being written to track online time to show users where they are spending all of their energy. The new addictive program will eliminate the ills of the old one.
Meanwhile, people get fatter and fatter, unable to get around or physically accomplish normal chores from a 100 years ago. Intelligence is going down as fewer and fewer books are being read (news flash: the printed book industry is on the way out unless this trend stops), and social organizations like churches and civic clubs see fewer and fewer members attend their meetings. The skills that are increasing? Reflex time. Ability to solve abstract, short-timespan problems. Basically the skills we need to interact with our entertainment. More and more, Indians and Chinese -- people coming from cultures who have been shut out of the technical world until recently -- are writing software for hardcore western appetites to consume.