tweaks. this orbit thing is still dope.

but that work is mostly in a prior commit.

and it's generalizable to any n dimensions projected onto any m!!
kinda. wait omg what if we orbited around >3 dimensions of data??? see
this is why you do things in 3D!!! sapir-whorf for graphics. yeah i
wanna build a reusable n-dimensional scatter. again, like in that old
video bret victor tweeted. #correlations.