Wide intraday ranges when looked at in retrospect on charts does not mean that day trading is as profitable as it ever was, unless you have evidence of discretionary traders capturing the majority of these ranges consistently on par with prior to the HFT/algorithm paradigm shift, if so please share it.
A lot of trending breakouts and then trend reversals in Crude oil futures take place in seconds to under 10 minutes...You're suggesting that the speed of price action has no influence on a discretionary day trader's profitability?
The burden of proof is on you and others who make this claim. Show us with data or charts how markets have changed in recent time and how that change has made it less profitable to day trade than in some other time in history.
As far as I can tell, sharp and fast price changes and reversals also happened pre-HFT and possibly even more dramatically so. But back then, people would complain about the specialist or the locals screwing them over and not HFT.
