Haven't heard from him for many years. He was(is) a very brilliant man but also highly combative. He made superb contributions to condensing my columns programming code into nested cells. Mind you this was not about 'how' to make trade decisions but condensing 5 columns into one which did the same thing. Unfortunatly though he was tied up on details which probably matter very much in his profession but mattered not at all in mechanical system design. To wit the massive go round he and I had because my vix numbers were off by .001 from his. After way too many posts and disagreement, I spent 4-5 hours changing 30-40 vix entries out of thousands by .001.
End results...not a darn thing changed. This was a forest for the trees perceptional problem. In many fields of endeavour, .001 matters very much; but in the stock market where vix runs 10-50 and there is no scientific precision at that level, .001 doesn't change what my program does at all. I get frustrated when I can see where .001 would matter, but am talking to someone very, very smart....who did not.
Market Data 
Markets 
AI
