Darwin didn’t talk about that; neither did Nakamoto, about “ICOs”. The ICOs have been challenged as a concept by authorities and “religious” bodies worldwide. These “religious” (rigid to the principles and unhappy to change) financial systems have their own limits.
They make rigid mandates for every new integration or experiment, introduction or invention within the system. These mandates tend to be a “dead-end” for ICOs these days. To provide a window in that “dead-end” for ICOs, and with more explanations and integrations to that “rigid mandate” policy of “religious bodies”, ICO-TIN has to come in picture.