Actually, it is the same IRL, when one runs out of time, one dies, just we don.t know when it will be, unlike the movie

You are absolutely right. I think it's better to not know, and also better to not being able to extend. Though when we are able to download our brains (including our consiousness) and in a next step are able to upload it to something or someone (AI, or human), we will be able to buy ourselves time. I'm pretty sure we will get the technology allowing us to do so.

Hahahaha, nice approach to extend a day into a week, every week!