Regardless of the input, why does returning data from a .then() always result in the passing back of an object promise?

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Returning data from a .then() always results in the passing back of an object promise because .then() always returns a promise. Even if the callback function inside the .then() returns a non-promise value, it will still be wrapped in a promise object before being returned. This ensures consistency in the way promises are handled and allows for more seamless chaining of multiple promises together.