Everybody views the market from a different angle, and that's okay. You can trade using any trading method, supply and demand, trend lines, resistance and support, or indicators. I've even witnessed dealers who just trade news. Your trading style is not very important. It doesn't necessarily follow that you are correct and he is incorrect if you are using a particular charting technique and someone else is evaluating the charts using a different technique. Profitability is the only factor that counts. As long as your advantage keeps you profitable, nothing else matters.