Assembly is source code...

Can confirm: In the 1970s our high school had a minicomputer for teaching programming, and it was turned off when not in use. After turning it on, we would enter the magic three binary instructions into memory using sixteen twitches on the front panel.

Give it six months and there'll be have Optimus robots toggling switches to load terrabytes of binary programs directly into memory. Nobody wrote it, nobody will read it, but it will run everything.