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That is correct. From the point of view of the infalling object, however, nothing changes as he crosses it except his position in space.

I say who gives a shit about the point of view of the infalling object. :-)


It seems to me, intuitively, that the infalling object should experience inverse time dilation and extreme blue-shifting of the outside universe as it approaches the event horizon. Due to length contraction, that energy would be increasingly perpendicular to the object's trajectory, approaching a point where it is bombarded with enough energy to either knock it off its trajectory or "smear" its particles into orbit around the massive object (basically another sort of firewall).

Presumably the mathematical descriptions tell a different story because I never see it described like this.


An amplitude is not a complex number. It is the real number one gets taking the root of the sum of the squares of the real and imaginary part of a complex number. In QM they will be between 0 and 1 and are probabilities.


From memory of quantum class the amplitude is a complex number and are not directly probabilities:

Most convenient reference:

> In quantum mechanics, a probability amplitude is a complex number ...

https://en.wikipedia.org/wiki/Probability_amplitude#A_basic_...


No matter, that's still a physical quantity. Probability is in the mind.

http://lesswrong.com/lw/oj/probability_is_in_the_mind/


Sorry man, but that's not even close to what happened.


I was the one on the other side of that bet (not under this name.) It was multiprocessing. I said OS/2 would be there first and he said NT would. I'm not sure who won but we were pissed off at each other enough by the end of it, with some weird threats having been made, that dinner was pretty much out of the question.

Odd that you would remember that. I thought I was probably the only one who did.


I was there as the 'melling'. Trolling the Internet was more fun when you didn't have to worry about down votes and karma. :-). I tried to stay reasonable but the OS/2 guys were rapid. Those were the days before Microsoft was "evil" and people rooted for them against IBM. It might be time to root for Microsoft again.


He'd mop the floor with them. Systems, languages, environments, etc., etc., were trivial then compared to today. I worked back then in a few "labs" that looked a lot like that.


The importance of his answer and the care with which he framed it comes at the very end of the clip. Without specifying a context he cannot answer the question. Leading up to that one is made to understand that without limiting the question to a particular context, an infinite regress is unavoidable. Brilliant, well articulated point that most people don't think about.


Good god that was uninteresting.


What stands in the way of deployment of this for general usage? Invention, disclosure, coding or what?


That's great. I've followed her blog for a long time for her physics and her humor about it but never had a clue she was a YouTube personality and performer as well. A whole new Bee dimension (or 11) is revealed!

She recently shifted her physics research focus and I'm dying to see what she comes up with and her way of telling it.


> "Satoshi Nakamoto" is almost certainly an alias, and maybe even an alias for a group of people.

Which would make it all the more appropriate.


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