👉 In the context of computer science, "immobilizing" a variable in a program is an operation that temporarily prevents its value from being updated. This can be useful for various reasons such as preventing the program from running out-of-order or allowing certain operations to run only once per cycle. For example, consider a stack data structure where we have a function `push` and another one `pop`. If we call `pop()` on a variable that is currently being pushed onto the stack, this operation