Mar 24 2016

Bill, we love you, but please stop saying that.





This is actually painful.

Bill Nye is a great guy, and a great science communicator, and has been for so many years.   I love him, you (probably) love him — of course we do.  That’s what makes this hurt!

Fortunately, physicist Chad Orzel (benevolent fellow that he is) views this as a teachable moment, and thanks to he can get the word out to a wide audience.  Excellent.

Physicist Sabine Hossenfelder, on the other hand, is just mad. With good reason.  

Orzel and Hossenfelder each break down the misconceptions point-by-point, and I urge you to click on the links above for the real scoop from people who know what they’re talking about.

Want a really short version?  How about this:

Bill: “…If this turns out to be a real thing…” Entanglement is a real thing, no “if” about it.  But you can’t use it to communicate faster than the speed of light.  It doesn’t work out like that.

Bill: “…it carries, for me, the belief that we’ll be able to go back in time…”  No.  If we could use entanglement to communicate faster than the speed of light, then we could send information back in time, yes…  But that won’t actually happen since we can’t use it to communicate faster than the speed of light.

Bill: “…we’ll be able to harness energy somehow from black holes …”  What? Where is this coming from? What has one thing to do with the other?    I see no connection… unless — wait!  That’s right!  If it’s possible  to send information back in time, then our future selves in their future advanced civilization will send back instructions to us, on how to harness energy from black holes!  Brilliant!  Wait, why haven’t they done that yet?  Oh, right: we can’t use entanglement to communicate faster than the speed of light. Because it doesn’t work that way.  Darn it.

Quoting Chad here:

“There’s no way to determine the outcome of a quantum measurement in advance, so the physicists on either end of an entanglement experiment end up with a set of random numbers that convey no information. Those numbers are perfectly correlated with each other, but they need to compare the two lists in order to learn that, and the comparison can only be done via communication channels at light-speed or below.”

Seriously, check out the links above.

I’m going to lie down and put a wet cloth on my forehead.  This is giving me the fantods.