When I first read your original post in the other thread with the math a thought came to mind to me.
In one of my attempts to get sober the first night I went to bed and laid there staring at the ceiling. I was miffed why I was tired and couldn't sleep. Then I realized it was because I was sober. That led me to ponder the last time I had crawled into bed sober and it had been at least 6 months. You'd think that thought would have scared me into achieving sobriety and within a month I was right back at it again.
It almost scares me to do the math of how much of my life has spent under the influence. Blecccchhhhhh!