New Schroeder linear tonearm, any thoughts?

Looking at the photos, I assume that at the distal end of the arm wand there is a bearing of some kind (I have read elsewhere that it is not a string-type bearing) that must have lowest possible friction. How then does the mechanism in the base "know" that the tonearm is pivoting across the surface of the LP? Is there any sort of linkage between the two mechanisms, or does the moving pivot just move independently of the arm wand pivot? If the latter, then it would seem one must re-set the pivoting base each time. And what happens if one wishes to start listening at some cut in the middle of the LP? (Thus I think I have got it wrong; there has to be a link of some kind between the two pivots or maybe the rear of the arm wand is fixed such that the stylus movement must control the whole operation.)

Lewm, I think that is driven by skating forces that arise as soon as the arm is out of tangent. If you'll notice the cartridge is mounted square in the headshell- no offset angle- which would increase said forces.

To understand the Schröder LT arm, you can research three things:

A: The Thales circle.

B: The patent by Richard W. Birch in 1969.

C: The thread Atmasphere suggested.

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I still don't understand how the rear of the arm knows how far to move to keep things aligned. I mean the only think attached to the record, and guiding the whole mechanism, is a small fragile stylus that is actually moving in all directions within the groove.

I would love to see a video of this in action.