How would this work though? You're not ordering your food via the QR code link, you're telling the waitstaff. Unless they ask you what price your saw, how are they going to correlate their variable price to a particular customer?
However, this would make it a lot easier to implement "peak pricing". Their menu could automatically update based on time of day, or day of week, and certainly holidays.
Personally, I find all the other eschatological possibilities much more disturbing. The heaven/hell dichotomy is unnerving on a lot of obvious levels. Reincarnation seems fraught with neverending suffering. And the idea of becoming a "ghost" or a spirit, forever consigned to haunt some old place is as terrible as it is ridiculous.
I'm looking forward to my hard earned non-existence, thank you very much.
https://www.nytimes.com/2021/05/16/business/bill-melinda-gates-divorce-epstein.html