Probably Surf gleaned from the website that the author had reached the same conclusions as Surf's own quant team, so he knows the author is on the right path.
I think HFT has changed markets a lot more than people think - what kind of trend is there in 2 microseconds? I don't understand the emotions in some of the posts in this thread. Reality wins not appeals for and against deities (Simons?). Simons is either correct or incorrect (trends no longer work). If Simons is wrong and you know it, then shouldn't you agree with him in your posting and make more money using a known sound method? If he is right, then shouldn't you pay attention and learn from it? What Simons does, has, or believes has zero effect on my own trading - NONE AT ALL! Does his interview present a threat somehow to those using trend-following? My recent thinking is that methods that work in inflationary times and deflationary times are completely different. Simons may simply be saying that inflation is low. Does anyone have any information on trading methods that work? PS: Surf - I like the monkey in the picture. How is the god of options trading "Karen" doing these days? Those threads were similar to this thread and for the same reason I think. I have probably read 300 plus books on trading through the decades and the only result of that is to learn how little I really KNOW about the subject!
Yesterday I finished reading the book for a second time. It is a remarkable book. I do not even know where to start. I will simple say this one stop trading and read this book before you start again...
Evidently appeals to authority don't work in surf's world, unless HE is the one appealing to an authority (Jim Simons).