Whoa so - I had to kinda dig to get to the Lvalues section of the docs, but ya really bury the lede there! I love the concept of x.!o = 3 and !x.o = {copy of x,

Whoa so - I had to kinda dig to get to the Lvalues section of the docs, but ya really bury the lede there! I love the concept of x.!o = 3 and !x.o = {copy of x, with o=whatever}. I didn't read far enough to understand whether this makes deep clones with sub-objects. (I'm guessing...not?) Still, that itself is very innovative.