Source: TashigiTaisa from Reddit Video Interview: Here or Here This interview was done last year (around December 2018). Highlights: Oda's workplace is attached to his house. He has about 10 assistants. He needs silence and doesn't speak when concentrating to work. The One Piece treasure is a tangible thing, not an abstract one. Ace won't come back to life. He already has the end of the series in mind. One Piece won't end in 100 volumes. He sleeps from 9-12 AM, his staff sleeps from 5AM-12PM. If someone predicted the ending, he will change it. Amazon Lily arc was supposed to be done later in the series but decided to do it earlier before his daughter went to school.