Expanding more on the logic of loading everything in around the user's currently zoomed/panned window, how much data would be considered appropriate to keep stored as the user is panning along the time axis?
With things like pturmel's pageVarMap we can technically store more data that is actually being provided to the chart. But then that gets into the problem of if the user is jumping around the time span, you end up with holes in the data, and need to reprocess it to fill in the missing holes.
How big of a window would you expect as a user to be able to view?
@nminchin How much data does the software you were showing in the post below retain?
Is it just storing data since the user opens the trend? Does it reach a point where it starts dumping data off the end?