I don't know about arbitrary assumptions, that's just common sense. Scaling is a way to make yourself feel better, but over the long term it cancels itself out.
Quote from billyjoerob:
Scaling out makes your broker richer. Let's say you trade 500 times/year on 100 positions. You scale in and out 5x per position. Over 100 positions, what does all of that scaling accomplish? Over your total portfolio, the scaling will simply cancel itself out.
And freezing is the opposite of burning. Neither extreme is necessarily comfortable or ideal.Quote from billyjoerob:
Pyramiding is simply the inverse of doubling down. Doubling down doesn't work for the same reason pyramiding does, because trends tend to continue.
Scaling out is a way to mitigate risk and uncertainty. There is absolutely no basis on which to conclude that it necessarily cancels itself out. Imagination doesn't necessarily make it real.Quote from billyjoerob:
...Scaling is a way to make yourself feel better, but over the long term it cancels itself out.
Quote from Gabfly1:
Scaling out is a way to mitigate risk and uncertainty. There is absolutely no basis on which to conclude that it necessarily cancels itself out. Imagination doesn't necessarily make it real.
Quote from billyjoerob:
If you scale in 5 times into one stock, imagine that you have five positions instead of one. If sell each position, are you selling out of five positions or scaling out of one? If your total account has adequate diversification, it doesn't matter. Think about it.
Please don't stop. Your tangents and non sequiturs are most entertaining. However, my work here is done.Quote from billyjoerob:
Scaling is like cutting a pie into 100 slices and declaring that you won't gain weight if you only eat small slices. Doesn't work that way. It's the same pie, not matter how you slice it.

Quote from billyjoerob:
Pyramiding is simply the inverse of doubling down. Doubling down doesn't work for the same reason pyramiding does, because trends tend to continue.