Directional wires/cables

 But quantum entanglement has no practical applicability to music reproduction today.  

                                          Who said it did?

     I pointed out: the phenomenon of information being instantaniously transmitted between entangled particles, has been accepted by Physicists, for decades.

          ie: Even Einstein recognized the phenomenon, referrring to it as, "spooky action at a distance", 80 years ago.

      I could have as easily used the phenomenon of a Bumblebee's ability to fly and that being accepted without explanation by the World's best Aeronautical and/or Aerospace Engineers, until Fluid Dynamics was developed.     Only then could Dickinson use that science, to model how it could lift that fat butt into the air, with those tiny wings (circa 2005).

       Another example might be why humans can smell/differentiate a vast multitude of odors*, with only something like 400 nasal receptors.

                    *some say 10K, some: a trillion.

       21st Century experimentation in Quantum science says it's likely that our noses are actually listening to and recognizing the frequencies/sounds, generated by atoms and molecules, via quantum tunneling.

                     ie: https://blog.donders.ru.nl/?p=11552&lang=en

                                           and:

https://www.pbs.org/video/the-quantum-power-of-the-human-nose-oc1ldk/

         AGAIN, the point being: no one has all the answers, or can make definitive statements.

                            Are you really so obtuse?

Okay, I was kinda done with this thread, but in response to this:

Can’t happen... The energy travels at near the speed of light. It’s at the light bulb the instant the contact closure completes the circuit... It’s that Fast!

Ponder this: You are watching a particular star on a clear night with your telescope, and suddenly you don’t see it anymore, you keep looking, perhaps it was blocked by a plane or some other object, or bent by some other huge object in a distant galaxy, but then after some length of time you are convinced that it must no longer be there, and how cool is that! You just witnessed a star burning out! You witnessed a star that had been burning for perhaps billions of years suddenly die! But in fact it "burned out" thousands of years before you were born- it just took that long for that last bit of light to reach your eyes.

Okay, I was kinda done with this thread, but in response to this:

Can’t happen... The energy travels at near the speed of light. It’s at the light bulb the instant the contact closure completes the circuit... It’s that Fast!

Ponder this: You are watching a particular star on a clear night with your telescope, and suddenly you don’t see it anymore, you keep looking, perhaps it was blocked by a plane or some other object, or bent by some other huge object in a distant galaxy, but then after some length of time you are convinced that it must no longer be there, and how cool is that! You just witnessed a star burning out! You witnessed a star that had been burning for perhaps billions of years suddenly die! But in fact it "burned out" thousands of years before you were born- it just took that long for that last bit of light to reach your eyes.

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Distance from earth? Measured in light years. How many light years?

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Quote:

Light is the fastest-moving stuff in our universe. It travels at 186,000 miles per second (300,000 km/sec). So, a light-year is 5.88 trillion miles (9.46 trillion km)."

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Quote:

"The nearest stars to Earth are three stars that lie about 4.37 light-years away in the Alpha Centauri triple-star system. The closest of these stars, Proxima Centauri, is just about 4.24 light-years away."

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Average distance in your home for a light switch to a light fixture.

Food for thought...

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For those who find it hard or impossible to visualise how a signal can travel faster than the stuff it travels through, consider how sound reaches your ears from a loud speaker.

Air comprises molecules randomly whizzing about in all directions, and sometimes colliding with each other and the surroundings. When the speaker cone moves forward, some of the nearby molecules get a slight extra shove in the forward direction.  They pass this extra shove to the molecules near them, and so on.. The extra shove reaches your ears at the speed of sound, but no molecule has to directly travel from the loudspeaker to your ear, let alone at the speed of sound  There is no need for a sonic jetstream, 

This is similar to the behaviour of the cloud of free electrons whizzing about in a metal, responding to a voltage signal.

Or think of a long train (our record in Australia is 4.5 miles long with 682 cars and 8 locomotives), The couplers between the cars are designed to have a small amount of slack so overall the train stretches when pulled and compresses when braked.  Imagine the train is stopped.  Apply power to the lead locomotive, and the coupling to the next car will stretch a bit before that car starts to move.  The process ripples down the length of the train.  After a short while, the signal that the train is moving arrives at the last car (a mile or more from the loco) though overall not one of the cars has moved more than a few yardsl.

@jea48 

I learned in 2010 what I was taught in K thru12 was wrong how electricity works.... Four years of electrical apprenticeship training I was taught the same wrong crap

Nevertheless, it would be helpful if you could remember how to apply Ohm's Law, and how power is calculated in electrical circuits!  Fortunately, when wiring houses, you don't need to work things out from first principles, because engineers have done this for you and experts have written building codes to follow.

My partner's son leads a crew working on high voltage transmission lines running hundreds of thousands of Volts, but in Australia he is not officially qualified to install a 240-Volt outlet in his own home!  That would be against government regulations.

Talking of government, a while ago I sold an upgrade to The Canberra Hospital's digital imaging system, which was the source of all patient records.  I included a big uninterruptible power supply (UPS) with rectifiers, batteries and inverters.  The hospital insisted that their own electricians do the installation.  When I inspected the finished system, there was a computer room with hospital grade power outlets, red for the high-availability outlets, beautifully run back through a distribution system to the UPS.  But the UPS only had one cable connected - the output.  The electricians (we call them sparkies in Australia) had "forgotten" to run mains power to the UPS.