Digital Afterlife

Almost everybody would prefer to live forever given that their biological  and mental wellness doesn't deteriorate beyond their youth but will it ever be possible ever?

Now some people would say by cloning organs and living on a scientifically controlled diet in a controlled environment can increase your chances of touching may be 200 or 250 years at best given the current availability of the technology not with standing the changes which might take place in future which might further prolong you lifespan.

But do we really need all this to really live forever?
I would rather prefer a custom designed super software which gives more or less the exact same response if that question were asked to me using an algorithm based on a simulation and cerebral tests run on me during my lifetime.

that is to say a "Digital Afterlife" wherein your twitter handle is still buzzing with activity even after you are gone or your Facebook Account still getting updated liking your great grand children's marriage pics but may be it sounds crazy and uninteresting as who bothers about what happen after we are gone but then why do we insure ourselves financially then why not insure your conscience which help guide your family or may just make things a little friendlier and easy to manage after you are gone and even then you are uninterested lets imagine this same software had been loaded with the conscience of Abraham Lincoln or with the intellect of Albert Einstein and you could add him as a desk top buddy wouldn't it be nice to have it around you even if you don't prefer Marilyn Monroe?