With all this discussion of time and space, please don’t lose sight of the scale at which the Story Limit, and therefore Timelocks and Optionlocks (aka Spacelocks), operates. It is/they are story wide, not any smaller than that.
You may include smaller instances of limited time, deadlines, limited options, etc. (e.g. the hour glass toward the end of The Wizard of Oz and the count down at the end of the Star Wars as the Death Star approaches the Rebel base), but they are not part of the Story Limit.
I think I just had an “aha” moment for simple labels for timelocks and optionlocks. If you look at them as each having a “state” version and a “process” version, they look like this:
TIMELOCK
- Deadline (state)
- Countdown (process)
OPTIONLOCK
- Limited Space (state)
- Limited Options (process)