<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">1. Mutable namespaces and variables are for computation processes like while or for loops. They are <i>not</i> for temporary variables (that is why classes and functions have their own scopes).<div>2. I want not to worry about name clashes.</div></body></html>