Quote from Specterx:
The assumption here seems to be that 'scaling out' means exiting fixed portions of the position at fixed, arbitrary points, such as 'breakeven,' '$1000 profit' etc. I can certainly believe that kind of strategy is suboptimal, since the market doesn't move according to arbitrary PnL reference points.
Exactly the point. The OP continues to pretend that by 'scaling out', we mean what you just said, that is, the removal of portions of the position at, to use his (mistaken) example, the 'break even' point (and other predetermined places). If you look back, he is always trying to characterize the act of scaling out in these terms.
Of course this is ridiculous and I have made it abundantly clear that to take a part of the position off at B/E when price action doesn't warrant it is a big mistake.
Once again, these are the claims being made by the OP. I have already provided all the links to the posts which include these statements by the OP.
1. Daytrading is inferior behaviour
2. He can determine the 'optimal exit point' for each trade
before the trade is placed. This is how he knows to hold positions until 'the end of a move' (the OP's phrase), even if price action shows that a change may be imminent.
3.
Scaling in is also inferior behaviour
4. He knows the best way to execute every trading strat, even those he doesn't employ.
The central tenet of this thread is that the OP claims he can predetermine the 'optimal exit point' for any trade. That in itself is a strange idea, but the OP goes further. He claims that the 'optimal exit point' can be determined through
backtesting.
Of course this idea is silly for anyone who has any experience with market modelling.
It is likely that the OP does not trade real money. He may be an Econ student or someone with a mathematical bent who is interested in the markets.