Charts show basically the same patterns as years ago. If anything the HFT's and algos have made them more precise because they are removing the emotional element. 70% or so of the trades in ES are computers. 25% are your traditional institutions and lastly 5% retail traders. Look at any chart today. It matters not that computers created the patterns or manual traders did. The same basic patterns are there. They were there 50 years ago. They are there today. They will most certainly be there thru our lifetime. Many HFT's are operating at a sub second level so if you are trading 5 or 15 min charts these basically won't effect you at all, at worst, little effect. Stoplosses may have to be put a little further out of reach as sometimes algo's will push price up or down and knocking out traditional stops then price immediately reverses.