Of course, in some ways and under many conditions, computers enhance reliability. One can perform some operations much faster with computers than with human brains, and in some cases carry out operations which exceed the capacity of human brains. I can't run as fast as my car goes, either. I believe that people in past times have done the same with regard to their own lives, i.e. I believe it's a natural human tendency which one ought to guard against when making historical evaluations. As to technology being so much more pervasive now than in the past, I wonder about that, too.
Technologies do tend to leap forward in a given long-enough lifetime.
But I wonder if a similar phenomenon has occurred in people's lives long ago. One can argue, I think, that the Internet and World Wide Web have evolved rather naturally out of telephone communication. Still, there's no dearth of people who call these methods of communication revolutionary rather than evolutionary. Maybe it's just a question of how different people react to change.