what if you had a language that passed all variables by value instead of by reference meaning that declarative passing of objects to other functions results in often-expensive copy operations for the arguments to and return value of each function call. so we use pointers for everything. except explicit pointer logic is extremely error prone so instead we should use objects which handle the pointer logic for us. also we need to invent references, which are like pointers but they're different, and add implicit conversion of objects to their references to the 1998 update to the language specification so you can pass these wrapper objects to functions without copies now. but also we need to invent rvalue references so you can pass rvalues to functions as well. btw do you know what an rvalue is? oops wait, these rvalue references so happen to fuck the taxonomy of value categories for the language so now you need to know what an xvalue is teehee

@wallhackio the first sentence is just swift, but they changed the rest of it to “now what if we let the compiler optimize all of that away”