When I was a kid, a summer vacation felt like an entire century. Every day was memorable. Now, what did I do last month? I have to think about it.
Your brain has its own logic: new, unfamiliar things get remembered. Repetitive, familiar things get skipped.
As a kid, almost everything is a "first time" β brain recording at full capacity. As an adult, life settles into routine. Brain sees it, skips it, compresses it all.
Time hasn't gotten faster. Memory density has decreased.
The only way to slow time: deliberately create "first times."
Small things to try: take a new route, eat at a place you've never been, visit somewhere new with an old friend, learn a small skill, go outside at an unusual time, do something you thought wasn't "your kind of thing," document a day seriously, or let your kid lead the adventure.
A child's perspective forces you to notice things you've been filtering out.