# Why ISAMUX / ISANS has to be WLRL and mandatory trap on illegal writes
-The namespaces, set by bits in the CSR, are functionally directly equivalent to c++ nanespaces, even down to the use of braces.
+The namespaces, set by bits in the CSR, are functionally directly equivalent to c++ namespaces, even down to the use of braces.
WARL, by allowing implementors to choose the value, prevents and prohibits the critical and necessary raising of an exception that would begin the JIT process in the case of ongoing standards evolution.