Penny seemed to be saying that the technological advances and the increase in the number of NDE's may be part of an evolution of consciousness
Consider how much the Innerwebz have contributed to the advancement of "consciousness" in just the last 20 years.
People all over the world can now discuss and bounce ideas off each other instantaneously. In the past it was necessary to hike down to the local pub, church, or Fraternal Lodge to engage in that conversation, with a very limited set of people and ideas.
The syncretic net effect of this technological innovation on global thought is incredible.