Guessing isn't easy today

If we study history, people's work was mostly routine. They do the same type of work everyday. So it was easy to predict people then. Let me give you an example. On one weekend, if I returned to my room after college and I couldn't find my roommate, I just come to a conclusion that he would have gone home. It was a kind of easy. 

But today, people have evolved a lot. Their brains work more sharply today. They have got lots of different works to do. So, it is very difficult to predict their actions. But, if you watch carefully for more details, you can guess it right.
Let me give you another example. On one weekend, when I returned to my room I couldn't find my roommate. So I thought he would have gone home. But then I carefully checked for other details and I found his mobile phone's charger which is still in the socket. So, I changed my decision which turned out right. He didn't leave to home. Because today it is obvious that no one would leave their mobile phone's charger behind. I know that, this type of judgement is not ''the perfect prediction" but it is still valid in most of the cases.

Actually, what I wanted to tell you is that nothing has changed mostly from history to present. Only thing you need to do is observe more carefully for the details they leave behind. Guessing isn't easy today but that doesn't mean it is difficult.