Exacty.. Is it also their "belief" that artists that worked hard on something should not be paid for what they made? Because then I think that would be as awesome as: Hey I have an idea, and you can be my partner. There is no money involved now, but would you be willing to work for a year without pay? See you Idea-Man
As a python coder that has changed to Pharo I can tell you that the answer to your questions is "no". Its actually much better because cpython is not a live coding environment but Pharo is.
iPython tries to compensate , Pharo of course lacks some of the features of iPython but overall Pharo's ability to do true live coding really shines here. Live coding means the ability to code your application while it runs without every need to stop it and restart it to correct an error.
Pharo lacks the existence of a pure mathematical library like numpy however it offers not only Nativeboost that gives full access to C libraries similar to ctypes for Python , Nativeboost also is an inline assembler. In theory that means access to raw speed.
Matplotlib I am not very familiar with but Pharo has a set of library called Moose which contain several libraries for visualisations one of them is Roassal which is easy enought to use for several kinds of Graphs and illustrations, there is even Roassal3d if 3d graphics is your thing.
Does that mean this isn't cool? This is off the hook. Looks very similar to the iPad versions of Berlin.. high-res images quite a smart Level-of-detail differentiating between zoomlevels.
With .bin files (maybe to keep the format closed? are just raw speed?)
If this is done in an automated way they are on to something pretty great.
Also to do this, is really really hard/lots of work. So kudos for that.