Why does time move forward? An experiment called BaBar, an international collaboration of more than 500 engineers and scientists, has recently shed some light on this mystery. But to understand their results, we first need to look at some work they did with antimatter.
Most people know that antimatter is the opposite of matter. And, of course, if matter and antimatter ever come in contact they annihilate each other in a violent burst of energy. But why do we live in a universe composed of matter and not of antimatter? If matter and antimatter are exact opposites, shouldn’t they both exist in equal proportions? Yet where is all the antimatter? BaBar determined that when certain subatomic particles undergo decay, they produce more matter than antimatter, resulting in more matter than antimatter in the universe. For this they won the Nobel Prize for physics in 2008.
Time reversal symmetry says that when a particle decays, it should have an equal chance of going forward in time as well as backwards. Matter is believed to move forward in time while antimatter flows backwards. In fact, another recent experiment showed that the present time is actually influenced by both the past and the future (see: Another look at God’s omniscience). But the BaBar experiment also showed that subatomic decay results in more matter that moves forward in time than antimatter that flows backwards (Physics confirms arrow of time- for B mesons). It is confirmation that physics has a preferred direction of time. So time moving forward for us might have something to do with our world being composed mostly of matter. I think it’s safe to say that God’s perfect timing is forward.
Interesting post on matter and antimatter in relation to time. Makes me ponder the mysteries of God in relation to the universe. Thanks, Bruce.
Thanks Lace! Yes, I find God’s mysteries of the universe fascinating.