agreed. it won't be a performance gain at all. but I suspect aggregating / indexing / etc. still is going to be the most resource consuming part of a push-base

agreed. it won't be a performance gain at all. but I suspect aggregating / indexing / etc. still is going to be the most resource consuming part of a push-based system if you want your content discovery to not be limited to two-way interactions, which means the gains of a push-based system, in terms of performance, shouldn't be that much (I suspect the main gains will be in realtimeyness instead).