Nested vs separate collection

[copleykj]

@znewsham

I’m not sure where I heard about that being the case if not from the docs, but it certainly is, we use it to aide with animations, we render a basketball shot chart, and when the list of shots changes, we animate the new shots, this is done by just setting a numeric _id so when the list changes, the existing dots move to new locations.

As per the BlazeJs docs it seems that the highest level of optimizations is accomplished via the specific callbacks on a cursor.