alt Hacker News...such as Renaissance Technologies which has only been beating indexes by double digits for 4 decades. Probably just a fluke.
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Agreed, but the issue is that their approach does not scale with more $. There is a reason they do not allow outside investment and it's limited to only employees and early adopters. As a non-profesional (everyone here), it's borderline impossible to find the next Renaissance medallion fund. If it were that obvious who it was, every guy would pile in until their approach no longer works
"Buy vanguard etf" is a Google search away. Can you show me where I can invest my money in Renaissance Technologies' funds?
Is RenTech more than a rounding error amongst all active traders?
Is it more than a rounding error amongst ALL (active/passive) traders?
I took the comment to mean "most" active traders, not all. Obviously it's possible to beat the market, it's just very difficult, and many fail trying, especially if it's not their day job.