What are some programming langauges where *everything* is immutable?

wrong, monads are just one example of how it's possible

g can't into functional programming.

>I was only pretending to be retarded

you define new state by declare it with a new Identifier.

so u could do
const a = 5
const b = a + 5;

this stuff is regular used, if correctness is your highest priority.

how do dhey work exactly?

Like magnets.

8 >>===== > ~~~

>immutable
>assembly
Nigga what do you think the move instruction does?

Here's what every single 100% immutable program compiles to:
ret

The short version: continuations, callbacks, whatever you'd like to call them.
The long version: Let's say you have a value of type IO Int. This represents a procedure which when called returns an Integer. The procedure does IO. The only thing you can do with the IO Int is to call a method that takes a callback. The callback will take an Int and return the next IO procedure to be executed. The result of the method is a single IO procedure which represents the two procedures executed in order.
Your whole program can just be a sequence of these actions. The part you write (the callbacks) can use no mutation whatsoever, but you still get to do IO.

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