macrocephalopod

the stuff I'm trying to hide is a million times more valuable than the stuff I'm not.

It's a really important point tho. What you can see resting in the book is what others don't mind you seeing.

interesting point. does this imply that, in thry, there shouldnt be any edge in trading based on DepthOfMarket information?

It's still useful. But more for technical reasons than to infer much about trader intent.

I mean it’s also useful because in some markets there are a lot of dumb traders who show their hand

ah I see. in thry, there could be a similar argument for some basic TA signals (massive high volume range breaks). I agree that true edge is likely elsewhere, tho personally find value in some of it