> easy to code for ([...] I'm talking from a "cognitive load" standpoint) I strongly disagree. The unfortunate design decision of folding arrays into hashtable

> easy to code for ([...] I'm talking from a "cognitive load" standpoint) I strongly disagree. The unfortunate design decision of folding arrays into hashtables forces you to be very careful when you conceptually need a sequential list, because if you store a null value in it, you cut your list in half. Ooops. An array is the most basic, simplest, most useful non-scalar datatype there is, and Lua bungles it.