Candle sticks concept

I have been looking at the details of candle sticks anatomy and physiology. Though I notice a touch of predictability but can’t see any reasoning behind them as indicators of buying/selling pressures.

A candle stick gives information of four levels only(opening, closing, maximum, minimum). It does not give real frequency or volume involved in a span of time.Moreover it is claimed that they apply to any time span.

A very simple way to prove that they are just random is to generate (or just imagine) your own time span candles over a one minute candles chart. Take any two points on the chart and you can readily see that you can choose two points that may indicate nothing consistent.

Do you agree?

All charting of price action over one minute time-frames is random.

But taking daily / weekly OHLC patterns as candlesticks is certainly not random, though signals only from these patterns is not as certain as books and system vendors say. I would estimate that a 60% success rate for a candlestick pattern is pretty good.