One observation I’ve made recently is just how big the fall-off is from peak morning performance to the last evening-time thinking of the day.
The odds of me badly mis-estimating my chances of working and then screwing off procrastinating, eating junk food, or rationalizing some bad decisions is almost zero in the first 4-6 hours awake, and still very low the next 4-6 hours.
It’s that last run of hours in the day, when fatigue has kicked in and the mind isn’t fresh — that’s where bad decisions come in.
The thing is, when your cognition is compromised, it’s often hard to be aware of that very fact. At least, that’s how it happens for me.
Here, this is a common situation lately — it’ll be somewhere from 7PM to 10PM and I’ll have one or two more “medium-sized” chunks of work I wanted to do for the day that aren’t done.