Hey, there is nothing like japanese way of living as it is a well known concept already. It seems like the concept of ikigai is a perfect fit for the times we live in. As authors themselves claim, during pandemics, it appears natural to start thinking about life, purpose, and the path we walk.
it’s like mobile phone company or technology company. they don’t give all technology in one phone and in one time. they make different versions and they keep releasing features every year even if they have developed it now.