That's true @OP. The market is a highly dynamic environment, coupled with the fact that, there are different market determinants that didn't exist some 5years ago that have come into the picture today. Surely, this have got a way to change some interpretation to the various tools we use in predicting the market.
We've come to a time where, a single tweet from a highly placed individual or organisation would affect the market in ways like never before. This only calls to the need for a more watchful fundamental analysis of the market.
So, it would be in one's interest to not just analyse, interprete and live the market but, to keep a watchful eye on either its playing out or not. Especially for an account without a huge capital.