Can We Change the Past?
Putting humans and consciousness aside, at the level of quantum particles Wheeler's Delayed-Choice experiments show that actions in the present can influence the past.
February 28, 2018
Black Holes and Our Cosmic Future
While Marcelo enjoys sci-fi speculation like most people, he also thinks there is a chance, in viewing recent films, to learn something about ourselves and our planet.
December 31, 2014