LUA (part 2)

If you could change something in Lua to make it better and look more like LISP, what would you change? _{I know it already has semantics very close to those of LISP, but it could do so much better.}

For example, I would add another atomic type for integers (signed and unsigned) and a ^ZOMG OPT_IMIZED cons data structure. Obviously, I would also make the damn arrays zero-based; whoever had the retarded idea of making them start at one needs to go play in the traffic.

What do you think, /prog/?

I'm currently wondering if Lua has any technical advantages over Squirrel, æsthetics aside.