Rightsumi is a concept, a philosophy, a target, a goal. It refers to that which expresses the following principles:
Rightsumi is the term to use when describing the experience of ultimate satisfaction with a solution, where there is no better or more elegant way to accomplish a goal.
It is not common to experience true rightsumi, but when it happens, there is hardly a better feeling.
When you feel a sensation that you have experienced ultimate right-ness, that is rightsumi. When you feel like recommending a product or service to everyone you know because it is so good, that is rightsumi.
We share examples we find of rightsumi in our blog.