Re: Crash course on the Fall of Rome

2020-04-21 Thread Alan Grayson
On Tuesday, April 21, 2020 at 6:16:47 AM UTC-6, Lawrence Crowell wrote: > > On Tuesday, April 21, 2020 at 2:38:27 AM UTC-5, Alan Grayson wrote: >> >> >> >> On Monday, April 20, 2020 at 3:21:03 PM UTC-6, Lawrence Crowell wrote: >>> >>> On Sunday, April 19, 2020 at 4:59:39 PM UTC-5, Alan Grayson wr

Re: Vacuum energy

2020-04-21 Thread Alan Grayson
On Tuesday, April 21, 2020 at 6:05:36 AM UTC-6, Lawrence Crowell wrote: > > On Tuesday, April 21, 2020 at 3:42:16 AM UTC-5, Alan Grayson wrote: >> >> >> >> On Monday, April 20, 2020 at 5:00:50 AM UTC-6, Lawrence Crowell wrote: >>> >>> On Monday, April 20, 2020 at 2:30:53 AM UTC-5, Alan Grayson wr

Re: Crash course on the Fall of Rome

2020-04-21 Thread spudboy100 via Everything List
I have read, that the Justinian Plague as you highlighted, led to the success of Muhammad's armies, signifying Allah's favor? Also, the Byzantines, seemed to be even worse at governance and taxes than the old western Romans had been 200 years before. -Original Message- From: 'Brent

Re: Quantum Computers

2020-04-21 Thread spudboy100 via Everything List
Very well, Professor. Yet, I brutish peasant such as myself ponders the "impact, of QC? If it is nothing more than sealing or cracking coded data, it could have an enormous economic and military impact, indeed. I am, however, was looking for it to boost the pace of technological innovation. Thi

Re: John Conway is dead

2020-04-21 Thread spudboy100 via Everything List
He is simply dead in this subdomain. All his information has merely jumped to another domain where he lives; having drinks now, with Schrodinger, Bryce DeWitt, Hugh Everett the Third, John Archibald Wheeler, and company. Do I really think this? Naw, just a bit of a nice thought when crap occurs

Re: Quantum Computers

2020-04-21 Thread Bruno Marchal
> On 20 Apr 2020, at 03:09, spudboy100 via Everything List > wrote: > > Now all is has to do is work far better than digital computing. Quantum computing is still digital computing. A Quantum Computer does not violate the Church-Turing thesis, and it obeys to whatever we can prove (a lot)

Re: Quantum computing may be (practically) dead

2020-04-21 Thread Lawrence Crowell
It appears to be more of a corporate or financial issue. The scalability of quantum computing is an issue, and it wraps around the decoherence problem and quantum error correction coding. Quantum computing may follow the path of virtual reality, which was really popular in the late 80s, faded aw

Re: Crash course on the Fall of Rome

2020-04-21 Thread Lawrence Crowell
On Tuesday, April 21, 2020 at 2:38:27 AM UTC-5, Alan Grayson wrote: > > > > On Monday, April 20, 2020 at 3:21:03 PM UTC-6, Lawrence Crowell wrote: >> >> On Sunday, April 19, 2020 at 4:59:39 PM UTC-5, Alan Grayson wrote: >>> >>> I believe the Roman army was well paid, had a prestigious status in >>

Re: Vacuum energy

2020-04-21 Thread Lawrence Crowell
On Tuesday, April 21, 2020 at 3:42:16 AM UTC-5, Alan Grayson wrote: > > > > On Monday, April 20, 2020 at 5:00:50 AM UTC-6, Lawrence Crowell wrote: >> >> On Monday, April 20, 2020 at 2:30:53 AM UTC-5, Alan Grayson wrote: >>> >>> >>> >>> On Sunday, April 19, 2020 at 7:23:00 PM UTC-6, Lawrence Crowell

Re: John Conway is dead

2020-04-21 Thread Bruno Marchal
Yes, it is sad. He dies from the corona virus, aged 82. RIP John. A wonderful mathematician. He wrote many nice books, also. His book with Richard Guy “The book of Numbers" is a little chef d’oeuvre. Bruno > On 21 Apr 2020, at 01:11, Lawrence Crowell > wrote: > > I heard about this on the d

Re: Vacuum energy

2020-04-21 Thread John Clark
On Tue, Apr 21, 2020 at 4:42 AM Alan Grayson wrote: *> how can the EM field contribute anything to the vacuum energy in a > region of empty space far away from charged particles? * Because Quantum Mechanics tells us that some things can happen for no reason, and because it tells us that the law

Re: Vacuum energy

2020-04-21 Thread Alan Grayson
On Monday, April 20, 2020 at 5:00:50 AM UTC-6, Lawrence Crowell wrote: > > On Monday, April 20, 2020 at 2:30:53 AM UTC-5, Alan Grayson wrote: >> >> >> >> On Sunday, April 19, 2020 at 7:23:00 PM UTC-6, Lawrence Crowell wrote: >>> >>> On Sunday, April 19, 2020 at 4:50:52 PM UTC-5, Alan Grayson wrot

Re: Crash course on the Fall of Rome

2020-04-21 Thread Alan Grayson
On Monday, April 20, 2020 at 3:21:03 PM UTC-6, Lawrence Crowell wrote: > > On Sunday, April 19, 2020 at 4:59:39 PM UTC-5, Alan Grayson wrote: >> >> I believe the Roman army was well paid, had a prestigious status in >> society, and had superior tactics in battle, using superior weapons, and >>

Quantum computing may be (practically) dead

2020-04-21 Thread Philip Thrift
it is not clear how quickly they can be scaled up https://www.wired.com/story/googles-head-quantum-computing-hardware-resigns/ @philipthrift --