Showing posts with label evolution. Show all posts
Showing posts with label evolution. Show all posts

29 October, 2011

The emerging mind, and the overwhelming awe

The ability to be able to do Science is the grandest gift that has been bestowed upon us Homo sapiens, during the course of evolution, while we were trying to 'survive'.

To be able to understand the intricate patterns of the Universe, decipher the codes of the nature, reason out the fallacies in our presumptions and to inch closer to rationality: Are we not gifted enough?
Why do we need any more miracles?

My latest read, that has increased my inquisition about neuroscience is the book, The Emerging Mind - a long pending read I must admit, and it comes in at the right time - when I'm all engrossed in an involuntary and obsessive spree of revelation after revelation. Written by one of the brightest of the neuroscientists - Vilayanur Ramachandran, the book is a must read to all Science afficiondos.


A somewhat gratifying compliment while reading the book is the presumption of the author that his readers are all Darwinians (which I so am), and would make zero sense in case you are a creationist or the "magic wand-life happening" believers!

The book has lot of medical jargon. It was quite a homecoming of sorts, after a gap of few years since my pre-university Biology and the little gyaan I assimilated there!



Knowing about the least known thing - The Human Brain, is an excellent appraisal of realizing where we stand today in terms of understanding everything. Although, this book by itself is highly speculative at certain claims, mostly it is convincing and I must add that the book is a lovely read, overall. Interestingly, the book has an equal number of pages dedicated to Notes , which are interesting case studies.

Another important aspect of the many of the arguments presented are that, they are efficient in disproving some of the exaggerated Freudian ideas and approaches using the physiology (if there's anything of that sort) of the human brain.

So, I am lesser a Freudian, and more in awe of the chronicles and adventures of the human brain after having read this book.

As Feynman puts it, "Wondering at the wonder of wondering" - Isn't the idea of being able to ideate, and to be able to contemplate the process of ideation itself something unbelievable.

The awe I have developed about the wonders of nature, and that is growing exponentially on a daily basis now has another element added to it.The human brain is equally diverse and obscure as the Universe itself. It is not just the awe about the human brain, but one step ahead, the ability of these jellies of neurons to contemplate and dig into the secrets of the universe, and almost as a recursion be able to stand out as a separate entity and wonder at itself! Wow, what an exercise!


Aren't we the miracles, we keep looking for in fables and gospels, stories and fantasies!

27 July, 2010

"Error generating folder list" in Evolution

I've been using Evolution mail client in Ubuntu for quite sometime now,without much hassle. But recently, I performed a hard restart on my Laptop and when I tried accessing Evolution, it could not retrieve mails from one of the local folders used to store my official mails from M$ Exchange.

The status bar would show "Error generating mail list", and when I checked the debug reports, it attributed an error stating: "Database image is malformed".


After looking up at launchpad's  bug report , it was hinted there that the problems in the database folder file 'folder.db' would result in this error.
I followed the following steps to correct it:
  • Run this command in the terminal to verify the status of the folder.db files 
cd ~/.evolution/mail ; for i in `find . -name folders.db`; do echo "Rebuilding Table $i"; sqlite3 $i "pragma integrity_check;"; done
  • As I did not have sqlite3 installed, I installed it from Universe repositories, 
 sudo apt-get install sqlite3
  • After installing sqlite3, I ran the first command again. This time, the command rebuilt the missing folder.db files, and also showed erroneous folder.db file. 
Rebuilding Table ./vfolder/folders.db
ok
Rebuilding Table ./pop/raghavendra@xyz.com@mail.abc.com/folders.db
ok
Rebuilding Table ./local/folders.db
*** in database main ***
On page 4 at right child: 2nd reference to page 218
Page 420 is never used
Error: database disk image is malformed


  • After you find out the erroneous file, delete it from its location, and close all evolution processes including evolution-dataserver and evolution-alarm notifier. 
  • Now execute the first command again, and verify if there are any more errors by running
sqlite3 ~/.evolution/mail/local/folders.db "pragma integrity_check;"
  •  After these steps, I started Evolution to find the error resolved.

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