Some lisps do this. like sbcl's sb-ext:save-lisp-and-die function is a "quit" that also persists the memory state. When you load this image later, you get it as

Some lisps do this. like sbcl's sb-ext:save-lisp-and-die function is a "quit" that also persists the memory state. When you load this image later, you get it as it was when you "quit" last time.