How do you test the indicators or robots? Thank you to explain me if you have time.

 
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Total voters: 53
 
I noticed that when I backtest a scalper the results are fantastic but when I actually run in demo, the résultts become catastrophic. 

I think it comes from the ticks simulation system tester MT5. 
And you what do you think?
 
i think some robot authors doit on purpose just to sell their EA , i hope everybody would be honest..
 

Indicator = whatever demo or real it is an indicator and if real just record the results

EA = both Demo for Period & Backtest  for longterm

 
burakumitvar:
i think some robot authors doit on purpose just to sell their EA , i hope everybody would be honest..
Thank you for your reply.
 
Elliott_Trader:

Indicator = whatever demo or real it is an indicator and if real just record the results

EA = both Demo for Period & Backtest  for longterm

Thank you for your reply.