I hope you won’t mind if I don’t answer the exact question you posed.
But since you opened the door to such an intriguing subject, I would like to propose that it is only fair that if someone wants to have the opportunity for a “do over”, they should have to accept some kind of constraint to their decision.
I would propose that if they want to be given a “do over” then the person offering the “do over” should be able to select the exact point in time in their life where the “do over” is offered but not both the time and the event.
Allowing the recipient to select both the time as well as the specific decision made is just too easy.
For example, have you ever encountered the following logic problem in a science fiction environment?
Suppose you know someone named “A” and suppose that “A” has a friend named “B”. If you enable “A” to somehow go back in time and they murdered “B’s” mother before “B” was ever conceived, then “B” could never be born.
Then, when “A” is brought back to the present, his friend “B” would not exist because his mother was murdered before “B” was conceived and so “B” would never have been born. Please don’t try and make this more difficult by specifying some kind of fancy conception using a Petrie dish and frozen embryos. Let’s just keep it real simple? Please?
Well, a similar logic problem exists with your proposal.
For example, if you allow someone to select both the point in time of a “do over” as well as the decision they made at that point in time, they would naturally select something like the following:
They would select the time and place when they bought a lottery ticket in the Bazillion Dollar Lottery Fever and they would then specify they want to select the winning numbers (because they would already know the numbers that won.)
By the way, I hope that in your city, you are allowed to specify the numbers you play in a lottery and are not just given a preset group of random numbers.
So, would you agree that it is just too unrealistic to offer someone both the time in their life they want this “do over” as well as the decision they would like to make instead of the decision they actually did make?
It just makes this game too easy and it would destroy the entire point of the “do over”.
As a matter of fact, instead of making the game too easy, it actually makes things impossible.
As a matter of logic, they should be able to select either the point in time of the “do over” or the new decision they wish to make. But it’s impossible to offer them the ability to select both.
Do you see what I mean?
But there is an easy solution.
Just allow them to select either the point in time they wish to have the “do over” or the specific selection they want to make. But not both.
What do you think?
By the way, doing this means you get to have a lot of fun too because you get to make the choice as to what their new decision will be. This should be a lot of fun. Perhaps you might like to design some kind of new Internet game based on this action? I bet it would be possible and it would be a great deal of fun too!