60 mins watch time
Posted December 2020
Time is perhaps the greatest mystery in physics. One question dominates: if the fundamental laws of physics not distinguish between past and future, why does it only seem to travel forward? A radical new answer has emerged, from former Oxford Professor and author Julian Barbour: time does not flow one way, it flows in two, its currents driven by the expansion of the universe and the growth of order in the galaxies, planets, and life itself.