Well, I said _need_ to stream it. I think that's slightly different: I _want_ to stream data almost all the time, but I _need_ to stream data (e.g. due to RAM l

Well, I said _need_ to stream it. I think that's slightly different: I _want_ to stream data almost all the time, but I _need_ to stream data (e.g. due to RAM limitations) fairly infrequently. If you have so much data (e.g. 8GB+, yes my workstation "only" has 8GB of RAM) that it _must_ be streamed, in my personal opinion you should opt for a better format than JSON. It's likely, too, that with a more specialized/space-efficient format, you may no longer need to stream the data!