haha.
dun sa magic#1, yun na nga, reserved word nga kasi sya. unang rule sa programming regarding variable declaration, bawal gamitin ang reserved words. example, bawal to:
int int;
kasi int is a reserved word for declaring INTEGERS.
ano pa ba...
dun sa javascript sa address bar, na-encounter ko na sya. ganyan kalakas ang address bar ng mga browsers. di ko sure kung considered as EXPLOITS yan eh.
everything roots to electronic signals -> 1 for high, 0 for low. kaya ayun kaya meron talagang ganyan. sabi nga samen, walang perpektong software. lahat yan may bug. kung gusto nyo mang-hack ng software, learn assembly language or try manipulating the machine code(1s and 0s).
good luck. hehe.