For the last 10 years I have told everyone that my best investment has been the Nasdaq because society is dominated by technology. I got this from Seeking Alpha and it helped me explain the dominance.
As long as you have a smart phone, you think AAPL… As long as you think that you are to busy to go shopping, you think AMZN… As long as you want/ have to stay home, you think NFLX… As long as you keep blogging, you thnk GOOG… As long as you want to be part of social media, you think FB… As long as you work for a large company you think MS Windows
You might not use AAPL you might use Samsung and for every line item above there are alternatives but the amount of time the world spends on technology now is amazing. Not counting sleep it’s 80% of my day. All of these companies will be replaced by some other company eventually but it will be a technology company that replaces them.