You all clicked on the link to know what this great key to immortality is. But before we get to this matter, there is an important notion that we need
This notion is called plastination.
Here is a definition of plastination : water and fat are replaced by certain plastics, yielding specimens that can be touched, do not smell or decay,
and even retain most properties of the original sample. 
Here are some exemple of plastination:
Now let's get to the Brain preservation subject. A man by the name of Kenneth Hayworth is pushing this plastination technique to the next level, on a
microscopic level. By preserving microscopic slices of every protein, neuron and sysnapse in your brain, Kenneth Hayworth hopes to store these slices
to reconstruct them later and bring back your consciousness at the same time.
This is how small they are going to make this plastination :
Here is how it is done (note that i do not possess the vocabulary to vulgarize this so i pasted it. All references will be at the end of the post ) :
" It involves preserving brain tissue with chemicals that prevent ice formation, followed by low-temperature storage in a "glass-like" state
(vitrification). Recent cryonics advances have allowed organ cryopreservation, thawing, and successful re-transplantation in small animals, bringing
this technology closer to its goal of reversible solid-state suspended animation. Each of these technologies, and other less sophisticated ones, such
as chemical fixation without plastic embedding, deserves to be carefully evaluated for its ability to preserve the critical structures of our brains,
an evaluation that has never before occurred for an entire human brain.
Fortunately, neuroscience is now identifying the synaptic structures that contain our unique memories and identity, and new electron microscopy (EM)
imaging techniques are allowing us to verify when these structures have been successfully preserved, from general synaptic connectivity all the way to
particular synaptic features, receptor distributions, and even the signal states (phosphorylation, methylation, etc.) of individual brain proteins."
Does this man have a solid background or is he making fantastical claims out of nowhere?
"he started his career by racking up a dozen or so patents at NASA's Jet Propulsion Laboratory. From there he headed for the University of Southern
California, where, as a grad student, he invented and patented a new kind of brain scanner. I could also mention that he's been working at Harvard
lately, researching the human brain's visual system." 
And here are the people working with him on this project at the brain preservation foundation:
(About 25 Authors,lecturers in that field of research all with Ph.D)
Here is what brain preservation could bring to humanity :
1. For Science. High-fidelity brain preservation is a necessary step to an eventual Human Connectome Project, understanding the circuit-level
organization of human and other animal brains. Progress in connectomics, or plastinating and scanning human and other animal brains, will allow us a
much deeper understanding of healthy and disordered mental behavior, and may also help create significantly more intelligent and useful computers.
2. For Memory Donation. Brain preservation would appear to provide interested persons worldwide a means of preserving their memories and experiences.
Those who wish to leave behind such memories, for loved ones, descendants, or as a donation to culture would be able to do so, potentially very
inexpensively, and potentially to the great benefit of society. Neuroscience strongly suggests brain memories could be read by future technology
without revival of the individual, if revival were not desired, much as we read computer hard drives or archeological digs today.
3. For Continued Life. Brain preservation might provide a reliable means of avoiding death entirely and reaching the distant future. For those who
accept the hypothesis that they are encoded in their brain's unique physical structure and process, all evidence to date suggests this would work.
Furthermore, if general artificial intelligence emerges in this century, as many scholars expect, reanimation might occur not centuries, but mere
decades from now, while your friends and loved ones are still alive, and could personally benefit from your revival.
4. For the Future. Even for those unsure of the value of preservation, such a procedure could be desirable if it were inexpensive and reliable. Such
individuals might "leave it to the future" (future family, institutions, or society) to decide if memory or identity revival was desired, in their
individual case. With certain knowledge that one's life experiences and insights will otherwise disappear from the world, and comparatively few
resources necessary for plastination or cryonics, preservation for the possibility of future service to loved ones or society might be seen as a
particularly responsible and humble end-of-life decision.
this information can all be found here : www.brainpreservation.org...
For my part, i think that this discovery as the potential to completely change how we humans perceive and deal with death. Now is this technology only
going to be available to the elites of this world? probably. Can you Imagine a world where the 99% is being controlled by not only filthy rich but
immortal elites. Scary...
But it is always good to dream of the immortality of the mind!
Note that i fully understand that this science is in progress and has not yet achieved the recreation of the mind or brain by plastination.