Everyone does. It's science.

When you are 10 a year is 10% of your entire existence. When you are 50 its 2%.

Every day is less of your life. Every day you grow and learn how to not have extreme swings in your life and grow more stable, making less "memorable" events.

When you are young you learn how not to fuck up as much. The key is to learn how to add memorable things when you're older.

Perception of the passage of time is linked to your memory. Think of it like this: If ten years passed and you have no memories at all from that time, then it's as if those ten years passed in an instant. What did you eat for breakfast two weeks ago? You can't remember because the brain doesn't record uninteresting events. There is only so much room there and it saves that storage space for noteworthy things. If you do the same thing every day without variation, like being stuck at home during pandemic, you won't have many unique memories from that time. Your perception of that time will be as if it passed very quickly. Compare that to growing up. Every stage of growing up is something new. You go to kindergarten, first grade, you go through puberty, making new friends. It's all new and noteworthy. It gets remembered.

There's science that shows that your thinking "slows" as you age, resulting in your perception of time seeing faster unless it's calibrated against something that is measuring it. Without a watch, older people's perception of a minute is longer on average than younger people's perception of a minute.

Look at your age in decades and how fast a decade passes. 20 years ago, 2 long decades, it was 2002 and to me it seems like 5 years ago. The average person lives only 7 or 8 decades. I figure I have maybe 2 decades left until I'm dead or at least utterly worthless.

I was at a gig recently when I really noticed it. I remember as a young person that getting in, to the support act felt forever, then the gap from support to main act felt like a fucking age. Now as soon as I was in, I barely had time to take things in and the support act came on. I had to check my watch when the main act came on as I thought they were on early or something.

It's really depressing - I'm earning £65000 per year and all I want is more time, when I was young I was earning £16000 and had all the time in the world....

I first noticed this as a young child. The duration of grade school semesters initially seemed like eons, as the years past, the wait for spring break seemed to be less and less. Spring break also seemed shorter.

If you go on a road trip to an unfamiliar place, you'll experience the same phenomenon. On the way to the destination, you are much more observant. You're witnessing new scenary (especially if its a different region from where you live), your also anticipating reaching the destination, and focused on navigation.

On the return trip, you've already experienced the environment and it feels as though your journey isn't as long.

Subsequent trips are exponentially faster as you become more familiar with the things previously mentioned.

There is an easy way to slow your preception of time though, simply focus on a clock and watch the seconds tick by. Ten minutes will feel like an hour. With total sensory deprivation, your experience of the passage of time will slow at a far greater magnitude.

I watched a video on this very topic last week.

As we age, our neurons fire off slower and slower. So, if our brains are moving at a slower pace, then everything around us will seem sped up.

Time is relative. Regardless of how long you live, the first 13 years will forever be the longest for you yet the first 13 years of your own child's life will have passed quickly and it will be difficult to recognize your grandchildren as being anything other than children, regardless of how old they may be.