1) Act on my society so as to reduce the chances of X^3 happening. 2) Leave my society and go to another one I think is better. 3) Leave my society and create a new one I think is better from scratch. 4) Take action to protect my grandchildren from the ill effects of X^3 when it happens. 5) Not have grandchildren. 6) Decide that my grandchildren are still better off in my current society, even factoring in the costs of X^3, than they would be in any of my available alternatives (including nonexistence), and do nothing.
If I understood your original comment, you were saying that the lack of evidence in this particular fictional world of significant numbers of people having chosen #2 or #3 was interfering with your suspension of disbelief. My experience of people is that #3 is vanishingly unlikely and #2 is exceedingly rare, even for extremely shocking X^3s. So, I don’t have that difficulty.
I have a few options in that case.
1) Act on my society so as to reduce the chances of X^3 happening.
2) Leave my society and go to another one I think is better.
3) Leave my society and create a new one I think is better from scratch.
4) Take action to protect my grandchildren from the ill effects of X^3 when it happens.
5) Not have grandchildren.
6) Decide that my grandchildren are still better off in my current society, even factoring in the costs of X^3, than they would be in any of my available alternatives (including nonexistence), and do nothing.
If I understood your original comment, you were saying that the lack of evidence in this particular fictional world of significant numbers of people having chosen #2 or #3 was interfering with your suspension of disbelief. My experience of people is that #3 is vanishingly unlikely and #2 is exceedingly rare, even for extremely shocking X^3s. So, I don’t have that difficulty.