This is one of my favorite (and perhaps hardest) quote. Is time relative? Thoughts?
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The older you get, the slower your brain gets
I wonder how it is for greenland sharks who live for possibly 500 years.
âThey reach sexual maturity at about 150 years of age, and their pups are born alive after an estimated gestation period of 8 to 18 years.â
Is time just different for them or do they have a lot of thinking time?
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As a scientist and someone obsessed with time, I will recommend these books for a start. I donât know how good you are with numbers or physics or fundamentals of math but these are accessible to most people.
Time Travel in Einsteinâs Universe: The Physical Possibilities of Travel Through Time
by J. Richard Gott
The Meaning of Relativity
by Albert Einstein (maybe a little bit too much math)
The Order of Time
by Carlo Rovelli
Itâs Really About Time: The Science of Time Travel
by John Oliver Ryan
What Is Relativity? An Intuitive Introduction to Einsteinâs Ideas, and Why They Matter
by Jeffrey O. Bennett
And this was literally my weekend read!
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In another way this also means by creating new experiences, you can slow down time. Itâs good for your memory as well. For example, take a different route to work each day.
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Word!
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Interesting, but in short, do you agree or disagree with the Norman quote?
(maybe its impossible to do it short, but for us with limited time) 
I donât. A person in a prison probably wonât feel like days are going by fast. This is all subjective depending on how engaging someoneâs life is i think.
That quote is prpbably trying to summarize this (especiialy the âchanges by age, proportional to the real and subjective timeâ sections:
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Time flies when youâre having fun.
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Intresting replies, looking forward to educate myself more on this. I also recall reading an article about a certain holiday effect describing the phenomenon of time accelerating each passing day due to familiarizing yourself with the place, but I canât remember how factual or scientifically backed it was.
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semi OT joke
Time flies like an arrow, fruit flies like a banana.
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Time doesnât exist.
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Perception of time is highly linked with the brain activity. The more effort and energy is put into âperceptionâ, the slower the subjective time is. And brain is quite lazy and tries to skip the unnecessary information (this also affects perception of music).
The most amazing thing are the dreams. You âliveâ half an hour of super active life in the other dimension, then to wake up to realize that only 3-5 minutes have passed.
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Tom doesnât exist!
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Yes, it is. Just ask your kid to do something and âin a momentâ has a completely different meaning for you and for them 
But on a serious note - the quote on the top hints at the actual cause of this phenomenon, although probably without realizing it.
Human brain is a âmachineâ building model of reality based on the collected inputs (sight, touch, smell, hearing, taste, etc.) and then - the more it learns - it tries to save the energy by substituting reality with the output of that model, unless thereâs a significant difference or discrepancy.
A kid needs pays a lot of attention to everything all the time, stays focused and spends lots of energy to teach their brain and build that model, because all is new & exciting, because the model needs to be expanded, updated, corrected. This is a very conscious, visible, felt process that also takes a lot of energy. A lot of important and memorable stuff is happening per unit of time.
If youâre an adult and stop providing yourself with new experiences, then life just largely happens on an auto-pilot, without need for much of conscious attention anymore, therefore it seems to go by faster. In a âbeen there, done thatâ kind of way.
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Donât ruin my dream.
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I do agree with the OP.
Also, when you are young and at school, itâs like being at prison with your 1 hour of release time, which is why 3pm took an eternity to get to. Same at work if you are in a boring job.
As soon as you are doing interesting things, time speeds up.
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No, unless weâre talking about some sound of one hand clapping or tree falling in the forest thing time is not relative.
Time (as a construct of man) is a linear unit of measurement which is not relative, it exists in equal measure whether we ignore it, acknowledge it, or forget about it.
Perception of time is relative, as is the human need to create and micromanage such nonsense. I might in fact argue that our skewed perception of time is a self-defense mechanism against the absurdity of such a concept.
But on a cellular level, time soldiers on.
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i feel old reading this
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Now that I think about it, I have a bunch of relatives but none of them are named time!
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