Does cosmology answer why the universe exist?
Or only "how"?
What is the meaning of life in the eyes of a cosmologist?
This question has nothing to do with science and should not be asked in the hard science areas of the forum.Do we exist by chance?
No.Does cosmology answer why the universe exist?
It depends on the cosmologist. You'll have to ask each one individually.What is the meaning of life in the eyes of a cosmologist?
Obviously not. You resemble your parents, for instance. Do you think that's just a random accident?Do we exist by chance?
As a mathematician I have to say yes. Your mother had periods about once a month. During intercourse your father produced millions of sperm. The combination of particular egg and sperm was random.Do we exist by chance?
IMO, all the above can be summed up as "we exist as a matter of mathematical probability".Do we exist by chance?
It was possible.....What is the meaning of life ......
But is that not talking about spacetime after the BB? That issue is not in question.timelike surfaces already exist, in the cosmological sense of time.
Ok, but there must have been the potential for time to emerge, because it did. It must have been physically possible since, here we are.If I understand the question as asking if time existed prior to the BB. IMO the answer to that question is; "No"
They exist now, so you need to explain how they didn't. Again, here we are trying to do something like that. As they say, results may vary.How can"timelike surfaces" exist prior to the existence of any "surfaces"?
Right, time is a passive thing that doesn't interact with anything. But for observers in relative motion, time is like a relation between them which is velocity/momentum dependent.Time is not causal to change, it's is a measurement of change.
IMO any suggestion that orbits, etc. are examples of time being causal to regular occurrences is getting the order of occurrence backwards.
I agree, but time has nothing to do with the occurrence of physical events. Time is a result of the occurrence and duration of physical events. Physical events only need mathematical permission. A timeless permittive condition is sufficient for physical events to occur as a "probability" given a timeless a priory permittive condition?Ok, but there must have been the potential for time to emerge, because it did. It must have been physically possible since, here we are.
AFAIK, I am quoting mainstream science that Time began directly after the unrestricted chaotic physical 3D inflationary epoch, until sufficient internal physical mathematics of timelike surfaces allowed for emerge of time as a reliable form of measurement of duration in accordance with emergent natural physical laws. But all that is after the BB and inside the ever expanding spacetime.They exist now, so you need to explain how they didn't. Again, here we are trying to do something like that. As they say, results may vary.
Many people on this forum believe stupid things. I have had one claim there has been an atomic war on Mars between Alien species.I believe Space exist first and time is the inherent outcome of motion.
If we have space, we also have time. If there was nothing else, there would simply be no one to measure the passing or flow of time.if we only have space and no object in it, there is no time.
And you know this how?if the space not even has electromagnetic wave, no radiation, no light, no single atom, there will be no time.