The difficult part about aspiring to live forever is that somehow you need the probability of an accident to drop off sharply and permanently
Not necessarily—you can use error-correcting algorithms and multiply redundant hardware to run your computer in spite of an error rate, as long as it is not too high.
Not necessarily—you can use error-correcting algorithms and multiply redundant hardware to run your computer in spite of an error rate, as long as it is not too high.