Is it theoretically impossible for anyone to gain immortality through living in a machine?

Is it theoretically impossible for anyone to gain immortality through living in a machine?

“Artificial intelligence has the same relation to intelligence as artificial flowers have to flowers.” David L Parnas

These are very recent, very cool videos that tell it like it is, and we ain’t there yet.

Henry Markram: Simulating the Brain — The Next Decisive Years [1/3] http://www.youtube.com/watch?v=_rPH1Abuu9M

Henry Markram: Simulating the Brain — The Next Decisive Years [2/3] http://www.youtube.com/watch?v=wDY4cFJauls

Henry Markram: Simulating the Brain — The Next Decisive Years [3/3] http://www.youtube.com/watch?v=h06lgyES6Oc