Hello,

From my research and studying, I have read that one trading systems do not work for all market conditions.

My principal focus is day trading systems (average one transaction per day less then 60 min timeframes). I am not interested in swing trading systems at which hold transactions for X period of days.

So far I have been creating one system what the believing that the machine will continue forever and be more profitable forever. From my research, I may be led down the road path.

Queries:
1. If a machine trader have numerous trading systems for different market conditions?
2. If yes, do you recommend system traders maintain each of their systems running in sim way to constantly assess the operation and turn best performing system as required?
3. If a system trader develop skill for obtaining when market conditions are changing and make one system adaptive for all market requirements.

The questions are from readings that no one system remain constant profitable forever. Until the systems is highly elastic to market conditions.
I hope I feel.

Thanks for your remarks.