The benefit of intervening sooner
AGI is likely to come this century. Say you have a plan $X$ that would prevent AGI from destroying the world. How beneficial is it to set plan $X$ in motion sooner by $n$ years? A very short answer: it reduces the probability of AGI ruin by something like $n/2$ or $n/3$ percent. Which is a lot. A slightly longer answer: it reduces the probability of AGI ruin by roughly $fn$, where $f$ is the probability per year of AGI ruin around the $n$-year interval of time between when plan $X$ would have been completed with intervention and without intervention. So if $X$ would take a very long time either way, or if the chances of AGI ruin are very spread out through time, then the intervention doesn't matter that much; otherwise the intervention probably makes a noticeable difference. A fuller answer: This post assumes that the arrival of AGI ruin, and the workings of $X$, are independent. It also assumes that the probability of AGI ruin without $X$ is 1, so results should be scaled down...