From John Steele at Nautilus, interviewing cosmologist Paul Davies:
Steele: What do you think are the most exciting recent advances in understanding time?
Davies: In terms of fundamental physics, is there anything especially new about time? I think the answer is not really. There are new ideas that are out there. I think there are still fundamental problems; we’ve talked about one of them: Is time an emergent property or a fundamental property? And the ultimate origin of the arrow of time, which is the asymmetry of the world in time, is still a bit contentious. We know we have to trace it back to the Big Bang, but there are still different issues swirling around there that we haven’t completely resolved. But these are sort of airy-fairy philosophical and theoretical issues in terms of measurement of time or anything being exposed about the nature of time. More.
Remember this when a local cosmology crank is speaking with great decisiveness on cable TV.
See also: Cosmology is naturalism’s playground. But does the fun mask a science decline?