Instead of increasing market trading hours sebi should make sure that all news are announced during the market hours.This will get rid of most of the gaps so less risk for swing traders.....also there will be more volatility during the day so day traders will also be happy.
A is predicting, B is following. 90 percent accuracy. with every winning trade confidence is increasing, so is the lot size. we can not predict the series of win-lose outcome as it has random distribution. say after 7th or 8th trade there is a loser. but the confidence is so high instead of cutting position with loss B starts averaging and this will lead to big dent to his account (cause he took intial trade profits with smaller position size and loss with large postion size)
Say B is still not able to guess that the markets are not about win/loss or probabilities and its about risk management. he again initiates a big bet based on prediction but outcome is a random function and can have streak of losers. loss again will wipe him off. Here the prediction can be of B himself.
Market is random in nature and its not bound to honour prediction of anyone. Follow it!!