If you're a history buff, like me, you're fascinated by the evolution of norms.
Horses were the cars of the 1800s, and their emissions went unregulated.
In the olden days, a trip across the United States could last months, especially if you didn't have TSA PreCheck.
"Facebook" was a teacher's command.
It's fun to look at life in 2019 and imagine how future generations will regard our habits.
"People actually smoked … what were they called … cigarettes? If only they had known what was in them."
"They boarded planes starting with the front?"
"They really let fans run onto the court after basketball games?''