Here is the fundamental flaw with pyramiding or as sone call it, averaging up.
It requires that you determine if the market is trending and not ranging or reversing, without that knowledge you shoot yourself in the foot.
However, if you had such knowledge, you would simply go all in, and not pyramid, therefore, the whole concept is illogical.
I am sorry, but that's the speculator's job.
If one can't tell if bullish, neutral or bearish.
Then one don't speculate, but arbitrage.
If one can't arbitrage, then one gamble.
The flaw is averaging up.
Which degenerate the exposure.
I mean, you get more vulnerable.
It grows the risk of breaking even, losing.
Because one get worst entry price (Average up).
In addition to increasing his size ...
So the flaw is increasing risk, to increase reward.
Unfortunately if it should be asymmetric, convex ....
However, if one can be accurate about the market state.
Then one can use it as a tool to lose small and win big.
The flaw is to overlook that avering up increase risk and decrease the room for errors.
Bullish, bearish or neutral
Means potential to go up, nowhere, down.
There's no timing, no predefined levels.
If you can't do that ... What do you do ?
And it's also a fallacy to consider each new entry on its own.
Because it's a FIFO process. One can't close a second entry,
Without closing the first one, first.