Why is it impossible to reverse-engineer closed source software?

https://lemmy.world/post/17371738

Why is it impossible to reverse-engineer closed source software? - Lemmy.World

The first programs were written in binary/hexadecimal, and only later did we invent coding languages to convert between human readable code and binary machine code. So why can’t we just do the same thing in reverse? I hear a lot about devices from audio streaming [https://arstechnica.com/gadgets/2024/05/spotify-wont-open-source-car-thing-but-starts-refund-process/] to footware [https://arstechnica.com/gadgets/2024/07/immensely-disappointing-nike-killing-app-for-350-self-tying-sneakers/] rendered useless by abandonware. Couldn’t a very smart person (or AI) just take the existing program and turn it into code?

It’s not impossible to do it.

Couldn’t a very smart person (or AI) just take the existing program and turn it into code?

No, you’d need a team of experienced developers and lots of time.
So much time that the target software you’re trying to reverse engineer usually moves faster than you can catch up.
So you’re constantly falling further behind the current state of what people want to use.

It’s taken years for devs to decompile Zelda let alone other projects. It’s crazy how much work goes into such projects.