Very interesting article! I have to agree with some other people here in the comment section that it's maybe a good thing we are not immortal. That would put too much of a strain on our ecosystem. In addition, that would also prevent very evil, stupid or brutal people from leaving this planet. ;-)
Did you read the last part of the article, too? There I also state that anyway from an evolutionary perspective it was most of the time more successful to "create" mortal species ... I find the part about the computer simulations interesting as well ...
Yes, I did. What I find to be very fascinating is the fact that even though immortality is such a distant dream, there are already people pushing research in that direction. Like the "Immortality institute" (http://www.imminst.org/about) for example.
I suppose to die is one of the things many people fear most. So it is very "human" to think about how to avoid or at least to delay ones death. Most individuals understand that an even bigger number of humans caused by immortality would be dangerous for the survival of the species but that doesn't change the fact that nevertheless many people dream about being immortal ...