Google has a tendency to test multiple different designs at once and it now appears to be applying that philosophy to YouTube. As noted by Android Police, YouTube seems to be testing three different ...

Whether you’re used to dropped wifi connections, or your housemates are using up all the bandwidth for streaming, we’ve all see the spinning octet of disks that is the YouTube loading animation.

Today, the user experience of websites should be very pleasant and the websites should be living entities. People expect nothing less than smooth transitions and unambiguous responsive actions.