That was an interesting read! Thank you for sharing it. 
Congratulations, rdb and wezu, on your placements in PyWeek–well done!
It’s interesting to note the enthusiasm here for intervals when I’ll confess that, with rare exceptions, it’s a feature that I’ve generally eschewed.
As to the inclusion of Assimp, ah, that somewhat explains the warning that I’ve been seeing of late, indicating that the engine was unable to load “libp3assimp.so”. Since I only really load egg- and bam- models, I presume that this can be safely ignored?