A must watch YouTube video on stylus in the groove!!!

Google Applied Science LP you tube.  Should be right at top.  Look at those grooves and how the needle is Bouncing!!!!  Now explain how important antiskate, null points, etc are.  If you thought your stylus was running parallel to the smooth groove walls Well so much for that.

This guy is selling nothing in this video.  No hypothesis to let his ego get in the way and no conclusion.  Well  I thought some of the more technical guys might get a bang out of this, regardless if it might make you rethink  your own hypothesis.

Enjoy the ride
So the OP using two different audiogon accounts ? Why ?
@theaudiotweak is Tom 
@romwh is also Tom 

P.S. The video is from 2015 and i believe everyone seen it before many times 

193,697 male persons in the USA with the name Tom. Tom
I have nothing to add to this conversation except my name is Tom. 

~Tom in Sacramento
Kentucky Tom here. Great Bourbon great Mother Nature and a greater than average  understanding of shear wave transmission in solid materials. Tom
I would just like to add that my name...
Is not Tom....
To my knowledge nobody by the name of Tom was harmed in the making of this thread.