Can someone help me understand why a library like this is even necessary? Can't you just wrap everything and treat it like a promise?

    const aPromise = Promise.resolve(1);
    const notAPromise = 2;

    Promise.resolve(aPromise).then((x) => console.log(x));
    Promise.resolve(notAPromise).then((y) => console.log(y));

    // Logs:
    // 1
    // 2