When I sign into youtube or you do - whatever - the clips that you generally view - the broad genres - reap suggestions for viewing based on your past experience. I get a lot of classical music and ballet suggested to me and if my granddaughter shows up for a visit and we watch "meow-meow" movies then I get a suggestion of some new ones the next time I log in. As her mom sometimes reads this blog maybe she will share this clip. If not, I'll find it on here next time she shows up.