In an interview with Archipel channel, he compared writing a story to sculpting from clay. According to him, there is always a flaw in the end that needs to be refined.
Developers do not have infinite time. Taro emphasizes that the project must be completed within a certain period, even if the result is far from perfect. His feelings for finished games cannot be considered either satisfaction or anxiety — they change over time.
According to Taro, even if he had unlimited resources, he would continue to correct details. The creator always notices flaws and things he would like to change.
There is a hint of sadness in this: you have to accept that the work on the game is over. But for Taro, this is not a reason for regret, but a confirmation of honesty towards himself and the project.