thanks for your thoughts.
Honestly I agree that he should forget about daytrading. Swing trade or long term investment is safer for him. But being a smart man he is, and he is already a successful long term investor in his own right, I can't really stop him from taking on this challenge. He is a cautious man by nature: he is blind. I don't think he will do something stupid. i.e. he is not likely to blow out his account by trading recklessly. It is more a matter of delivering the market data to him, and facilitating a way for him to perform useful analysis, so that he can make timely trading decisions.
Sound is a great idea. As a first step, I am thinking of rigging up Tradestation for him.
I will write a sound routine that annouces the closing price every 5 mins.
During the 5 minutes interval, if the price trades above the previous bar's high, it will give a high pitch beep. If the price trades below the previous bar's low, it will give a low pitch beep.
He can then listen to the market as it unfolds, and plots a graph in his mind.
I will run the idea with him tonight.