The Effect of the Moon on Earth's Rotation

The moon has made our days 4 times longer. The earth's rotation has already been significantly slowed by this effect from the moon. Eventually because the moon keeps tugging on the earth and making it a little bit longer than tugging on that handle as it passes, eventually it will make the earth take 47 days to spin. At that point the earth and the moon will both be tidally locked to each other. And the moon will only ever see the same face of the earth.