Talk:Homura Akemi/@comment-1303606-20180429135159

"Timestop seems to have a limited supply, and she must reset the timeline to refill it." My assumption is that this is based on her being unable to 'activate' her shield near the end of the TV series.

This is not due to 'a limited supply' but rather the goal of the activation, in that she was attempting to flip it. (The shield is also an hour glass, and she only needs to want to time stop, but must actively spin her shield to use the strongest feature.) It had not fully shifted to one side, meaning this should be mixed with the next point, in that she can only reset AFTER a certain amount of time, and go back to a specific time. Time travel puts it on a cooldown, not initiating a reset. Side canon of Tamura only shows that the mechanism that causes timestop can slow down if she allows her space-time pocket to be junked up, however this is not part of the main canon and is otherwise instant in all other mechanisms.