system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is compiled code impossible to access unless the uncompiled source code is available. Can’t game devs get a retail ROM and decompile the code from that?
gpt
It's not that easy. Once it's been compiled, you can't decompile it. Think of the code like the recipe for a cookie. If you have that recipe, you can make that cookie any time you want. But if the cookie is baked, you can't just look at it and figure out the recipe. You'd have hints, sure, but the full recipe can't be figured out by looking at the end product. 

Compiling code is complicated, and the end result can't easily be reversed.