[quote=“tommor, post:4, topic:106098, full:true”]The markets don’t change, only price changes.
I certainly understand the logic behind this statement.
However, with the increase in volatility and the emergence of algo/hft in the last 20 years, do you think that while historical price and current price movement appears similar, there is perhaps a difference in the behavior, tendancy or characteristics of price action that would affect the reliability of certain trading strategies that worked in the past?
Another words, is it possible that long term, price generaly moves the same today as 20 years ago, but arrives at that price while taking a slightly different, more volatile path, esp when viewed from a shorter term perspective? And if so, would this have a signifact impact on a traders strategy/system.
I ask because ive heard long time traders claim that markets do change with time and strategies must be modified to adjust to this change.
Do you think this is valid in any way?