It is true that the brain rots once you turn 60

It is obvious if you look at Do-ol or Hwang Sok-yong. They have completely lost it.
Good grief, calling them pro-Moon supporters... How much must they have lived clinging to those New Jae-myung YouTube channels?
These days, there aren't many fools left on the Bobaedream boards chanting about the pro-Moon faction.
Rhyu Si-min is only at this level because his brain has rotted. In his 20s and 30s, he was so brilliant;
seeing him work during his time as Minister of Health and Welfare was truly impressive.
They say he mastered all his duties just a month after being appointed minister.
The degree of rotting varies depending on DNA, drinking and smoking, one's usual character, YouTube algorithms, family,
and various other environments.
Looking back, if I thought about myself in my 20s, I'd say, "Holy sh*t, I was a genius."
Back then, once I studied something, I didn't forget it easily... My brain already rotted in my 50s.