> the problem of adding two 32 bits integers is itself imperfect since you may at some point have big integers to sum, so any solution is inherently flawed, too

> the problem of adding two 32 bits integers is itself imperfect since you may at some point have big integers to sum, so any solution is inherently flawed, too Smalltalk solves that problem by promoting the result to arbitrary precision arithmetic. It does the same for integer division. For example, 5 / 2 returns a Fraction, not an Integer.