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Cecil
15th May 2006, 11:45 PM
Has anyone else read this? It's a massive (1100-pages) treatise on the current low-level description of the nature of reality in relation to its mathematical underpinnings. There's a summary on Wikipedia (http://en.wikipedia.org/wiki/Road_to_reality).

I just picked it up the other day, and am about 100 pages in. It's like no other science book I've read. It seemingly aims to be a popular science book, and the writing style bolsters that view, but it does not shy away from the mathematics. The pages are littered with partial differention operators amidst a sea of Greek. In the introduction, the author (Roger Penrose) made no qualms about the fact that our current understanding of reality IS highly mathematical, and that no description of the universe's workings would be complete without including math.

He has mentioned that he aims to provide a more conceptual understanding of the mathematics, rather than merely slogging through page after page of formulae. I think this is the best way to do it - I had a prof last semester (for Computation Vision) that did the same thing. It was a CS course, not a math course, so despite the material being relatively math-based, his proofs were all very handwaving. I'm of the opinion that the rigorous proving of things should be left to the mathematicians, and that understanding WHY something is the case in general is more beneficial in applying the result.

Most of the math is currently over my head - I know little beyond multi-variable calculus, and the book talks about things like n-dimensional manifolds and tensors. There are many many occurences of people's names used in adjective form. Hopefully I'll be eased into this stuff - the back of the book says it, "assumes no particular specialist knowledge on the part of the reader." It'll be cool to learn about all this stuff.

I'll let you know how it goes. :)

Cecil
18th May 2006, 08:45 PM
Ouch.

I'm 150 pages in, and I've just been dragged through Reimann surfaces and mappings, complex valued functions and the integration thereof, and analytic continuation of functions. I have background in exactly zero of the above. Now it's on to Fourier analysis, which luckily I've just recently studied.

This is one of those books of which I'll have to reread parts. And rereread them too. Maybe even re^4ad them.

Floyt
19th May 2006, 01:06 AM
File under "books that I would like to read but won't have the tools to properly evaluate unless suddenly developing a humonguous backbone for in-depth study" - also known as the desert island file. Good on ya for battling through!

My own level at the moment is "A Short History Of Vertebrate Palaeontology", replete with tasty (if geeky) anecdotes and evidently written by an anthropologist as there is not a single equation or greek letter in the book. I could tell you lots of quirky things about pseudosuchian thecodonts! :D

Raphael
19th May 2006, 04:07 AM
I attended a lecture by Roger Penrose at the Perimeter Institute for Theoretical Physics (in Waterloo Ontario) about 2 years ago. For those of you interested there is a stream of that lecture here-Mediasite Presentation Catalog (http://streamer.perimeterinstitute.ca:81/mediasite/viewer/FrontEnd/Front.aspx?cid=11c6ed02-c9d9-4be4-961b-a8085fc24e07&shouldResize=False)
-click on the sliding scale on the left under "Opening Gala"

TobiasTheViking
19th May 2006, 04:12 AM
I attended a lecture by Roger Penrose at the Perimeter Institute for Theoretical Physics (in Waterloo Ontario) about 2 years ago. For those of you interested there is a stream of that lecture here-Mediasite Presentation Catalog (http://streamer.perimeterinstitute.ca:81/mediasite/viewer/FrontEnd/Front.aspx?cid=11c6ed02-c9d9-4be4-961b-a8085fc24e07&shouldResize=False)
-click on the sliding scale on the left under "Opening Gala"
have i told you i love you lately.

That site is great, i LOVE lectures. Especially when i can get them :)

Charlie Monoxide
20th May 2006, 01:37 PM
have i told you i love you lately.

That site is great, i LOVE lectures. Especially when i can get them :)Ditto here Rush, err Tobias. What a great site. Very interesting lectures.

Charlie (please lecture me) Monoxide

Nancarrow
20th May 2006, 04:28 PM
I got Road to Reality as a Christmas present back in 2004. I keep coming back to it, taking a break, reading something more lighthearted, trying again... I conked out at chapter 8.

Good luck!

SirPhilip
13th June 2006, 11:47 PM
Has anyone else read this? It's a massive (1100-pages) treatise on the current low-level description of the nature of reality in relation to its mathematical underpinnings. There's a summary on Wikipedia (http://en.wikipedia.org/wiki/Road_to_reality). That looks very apt - maybe it will help me reconcile my obsessive interest with meaningful visual problem solving and my opposite interest in human audacity and all things ephemeral.