Any lifetime that depends on an io loop or user input cannot be determined within the loop Period. Even if you have an asic designed for garbage collection. It

Any lifetime that depends on an io loop or user input cannot be determined within the loop Period. Even if you have an asic designed for garbage collection. It cannot even be dynamic. Basically in these cases you have to extend the lifetime to beyond the point of indeterminism into the point of determinism or in other words move the life time outside of the loop. Worst case scenario you move the lifetime to right before termination of the program.