Bitcoin is valuable because it is useful as a form of money. Money needs to maintain a relatively stable value, but the stability we prize in money is no good for an investment where the appeal lies in its ability to become more valuable. As the Brookings Institute’s Tonantzin Carmona has painstakingly explained, bitcoin can’t be both money and an investment. Pick one. Better yet, pick neither.
You can't be both a child and an adult at the same time so humans don't exist.