Quote from John Merchant:
Of course all my posts are bullshit. Total guesses. But my point is that it is wise to look at the longest timeframe in which it is possible to identify a clear trend, whether that is days or minutes. Go as far back as you have to to draw a trend. Not saying you shouldn't trade short term trends, fuck, my longest day trades are in minutes, but at least give yourself a longer perspective. IMO it is absolutely essential if you are making decisions on trades you want to last for months, like 401K decisions.