Imagine if we dumped our trash into one end of a big fuckoff machine and out the other end it came out in microscopic pieces into hoppers for reuse or correct disposal.
Throw in an old appliance and out the other end comes the aluminium from the body, the steel, the copper from the wiring, the silica... you get the idea.
Dont tell me how my hypothetical science fiction invention works, you dont understand the hypothetical sciemce fiction research we would be hypothetically doing.