Means what its says. Markets do not flip at the close of one bar from trend to range or range to trend. Its impossible to use a trend-following strategy up to the close of the bar and then start a range-trading strategy with the open of the next.
That depends on how you define range. A doji bar is a 1 bar range. If you dial down to smaller tf that doji bar is a range alot longer than a 1 bar range. Every trend bar, bull or bear, is a BO bar, and a climax. The market is always,nat all times, in a range, a trend, a channel.
Had some similar thoughts recently. I am purely a trend-follower, using only the D1 charts. That said, I usually enter by pre-set order on a counter-trend bar. For example, in an uptrend when a recent daily bar has printed with a lower high and lower low, I would set an entry order at the low bar's high. In one sense this is trend-following, in another its trading a reversal.