what choice did the poet had to make in the poem the road not taken?

The narrator comes upon a fork in the road while walking through a yellow wood. He considers both paths and concludes that each one is equally well-traveled and appealing. After choosing one of the roads, the narrator tells himself that he will come back to this fork one day in order to try the other road. However, he realizes that it is unlikely that he will ever have the opportunity to come back to this specific point in time because his choice of path will simply lead to other forks in the road (and other decisions). The narrator ends on a nostalgic note, wondering how different things would have been had he chosen the other path.