I Don't Have Time to Talk About Time

I’ve got this idea about how my perception of time changes. When I was a kid, around 5, and I had to wait 6 months until Christmas, it seemed like torture. 6 months is so far in the future that it might as well never come.
Considering that folks generally don’t start developing lasting memories until they are close to 4 years old*, that means that waiting 6 months is, more or less, the equivalent to waiting a quarter of my entire living memory for Santa to visit next.
So, in my scenario, a five...