Gyro Rigidity and Drift

I am working with the Microstrain 3DM-GX3-25 and to better understand how to use it, I have also been studying the exact mechanism on how all its components work together. A part I found difficult as a novice engineer was how the gyro and the accelerometer work together. A key component of understanding the two’s collaboration is the drift that gyro experiences. This is a super short clip on YouTube that I found which sums up why the gyro is only good in the short run.