speed of execution along with clean and concise data is quite...

speed of execution along with clean and concise data is quite important but what about the fundamental aspects of trading such as a correct position sizing model and the ability to read the Time and Position of the market at a particular point in time .Bright lights and flickering screens are very pretty but do they make a fundamental difference to your bottom line . Some of the best technical traders I have seen dont use a computer although they do have a telephone to call in the orders .