Re: The physical limits of computation

2024-01-22 Thread John Clark
On Sun, Jan 21, 2024 at 9:37 PM Brent Meeker wrote: > *> His* [Shannon's] *measure of information is relative to a channel and > depends on the counterfactual number of messages that could be sent. > You're presuming that each letter could have been one of 25 other letters. > But there are only

Re: The physical limits of computation

2024-01-21 Thread Brent Meeker
On 1/21/2024 5:40 PM, John Clark wrote: On Sun, Jan 21, 2024 at 7:03 PM Brent Meeker wrote: >>> /If I write "tamaontietoa" is it information or gibberish?  Is it about something? / >> There's no reason it couldn't be both, Shannon would say it's definitely

Re: The physical limits of computation

2024-01-21 Thread Jason Resch
On Sat, Jan 20, 2024 at 1:46 AM 'scerir' via Everything List < everything-list@googlegroups.com> wrote: > Interesting quote about all that (and information) > Frank Wilczek: "Information is another dimensionless quantity that plays a > large and increasing role in our description of the world.

Re: The physical limits of computation

2024-01-21 Thread John Clark
On Sun, Jan 21, 2024 at 7:03 PM Brent Meeker wrote: >>> * If I write "tamaontietoa" is it information or gibberish? Is it >> about something? * >> > > >> There's no reason it couldn't be both, Shannon would say it's > definitely information, > > * >No he wouldn't.* > Of course Shannon

Re: The physical limits of computation

2024-01-21 Thread Brent Meeker
On 1/21/2024 12:00 PM, John Clark wrote: On Sun, Jan 21, 2024 at 2:31 PM Brent Meeker wrote: > /If I write "tamaontietoa" is it information or gibberish?  Is it about something? / There's no reason it couldn't be both, Shannon would say it's definitely information, No he

Re: The physical limits of computation

2024-01-21 Thread Brent Meeker
On 1/21/2024 5:15 AM, John Clark wrote: On Sat, Jan 20, 2024 at 7:27 PM Brent Meeker wrote: // /> The problem with this is that information, like complexity, has no physically definite operational meaning.  You can't go into the lab and ask what's the information content of

Re: The physical limits of computation

2024-01-21 Thread John Clark
On Sun, Jan 21, 2024 at 2:31 PM Brent Meeker wrote: > * If I write "tamaontietoa" is it information or gibberish? Is it > about something? * > There's no reason it couldn't be both, Shannon would say it's definitely information, but he doesn't care if that information contains a great

Re: The physical limits of computation

2024-01-21 Thread Brent Meeker
That assumes that there is something that the physical state is /about/. If I write "tamaontietoa" is it information or gibberish?  Is it about something?  All the science of information is about encoding and decoding; it is not only substrate independent, it is content independent. Brent On

Re: The physical limits of computation

2024-01-21 Thread John Clark
On Sat, Jan 20, 2024 at 7:27 PM Brent Meeker wrote: * > The problem with this is that information, like complexity, has no > physically definite operational meaning. You can't go into the lab and ask > what's the information content of "this".* > In 1948 Claude Shannon gave us an operational

Re: The physical limits of computation

2024-01-20 Thread 'scerir' via Everything List
"In some respects, information is a qualitatively different sort of entity from all others in terms of which the physical sciences describe the world. It is not, for instance, a function only of tensor fields on spacetime (as general relativity requires all physical quantities to be), nor is it

Re: The physical limits of computation

2024-01-20 Thread Brent Meeker
The problem with this is that information, like complexity, has no physically definite operational meaning.  You can't go into the lab and ask what's the information content of "this". Brent On 1/19/2024 10:46 PM, 'scerir' via Everything List wrote: Interesting quote about all that (and

Re: The physical limits of computation

2024-01-19 Thread 'scerir' via Everything List
Interesting quote about all that (and information) Frank Wilczek: "Information is another dimensionless quantity that plays a large and increasing role in our description of the world. Many of the terms that arise naturally in discussions of information have a distinctly physical character.