No-one mentioned visual analysis so dont put words in my mouth ..Even if you found a price action/scalping edge through visual analysis, the speed of price movement in modern markets won't allow you capture it. It must be coded to execute if you plan to seriously daytrade. Longer term PA/TA may still be viable, but exposure risk increases exponentially. I'd still use quant tools, even with longer term outlooks. I just find it much easier to place blame on objectivity vs. subjectivity if things don't ever work out.