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RE: [amibroker] Re: Will systems degrade? (was Optimization)



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<SPAN 
class=517260120-17102003>I'm willing to do the work I think, have been trying to 
already, to the best of my limited understanding.
<SPAN 
class=517260120-17102003> 
<SPAN 
class=517260120-17102003>but it's the concept of what to look for and how that 
puzzles me. sometimes I do get nice backtest numbers, at least moderately nice. 
but if I don't understand why that should be possible given what's been said 
about the dynamics of market evolution, why should I believe 
them?
<SPAN 
class=517260120-17102003> 
<SPAN 
class=517260120-17102003>I keep coming back to the same question that I'm sure 
you're all sick to death of, I know I am: if auto-optimization isn't very 
successful, doesn't that imply that past performance tells us very little about 
the future, and if that's the case, how do we develop trading 
systems?
<SPAN 
class=517260120-17102003> 
<SPAN 
class=517260120-17102003>dave
<SPAN 
class=517260120-17102003> 
<BLOCKQUOTE 
>> 
  ...frankly, it's hard to see how rational > trading system design is 
  possible in> a world like this. or am I just depressed?I like 
  Edison's attitude when looking for the right material to use in the light 
  bull. When yet another "bright" idea (sorry I could not resist) failed 
  when tested, he is reported to have said, "We are making progress. We now 
  know of 999 things that will not work." After trying everything from 
  bamboo to who knows what, he eventually found the right material. 
  Genius is 5% inspiration and 95% 
perspiration.b






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