Will it be possible to transfer ones memory into a synthetic medium in our lifetime

Before we can do that we must first understand the precise physical nature of memory. I do believe that ultimately it is an energy form, albeit of an energy not yet known. In this event it will be possible to store it at a sub-atomic (quantum) level in matter. This will not be done in our lifetime however. Perhaps in a hundred years when physicists are familiar with this "new" form of energy, it may be done..

You write, don't you?

So, it's been possible since the invention of writing.