On Sun, 02 Jun 2019 16:48:57 +0700, John B. Slocomb wrote:

See https://www.youtube.com/watch?v=-9gQ1KRhesM

In the narration he mentions that a 24 speed gear set, or even more,
would be perfectly feasible. No wires, no cables, either.

Just a rehash of old ideas. The same reasons for the failure of shaft
drives will see it fail again. Of couses, as ther is electronics
involved, that will introduce another pile of reasons for it to fail.